1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6a00ddad4cbcc44f9c13c98acb5686976fde82ee75b643ff190fd64d749d4a. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16d32816-f322-4976-be5b-971b0583736a.json and https://artists.proofprofile.net/proofs/artist/16d32816-f322-4976-be5b-971b0583736a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297f2382b4ee9e298436b1ac1225e4a5f56e2187c0da3fd396a77bb8a945ba0e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1414565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd501b920fe5bd06cc6390f712bee7042f3a3b948a1d81f649bd2cc64f50b0aa. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38b08eed1af06f1d3085753477794e4955effc4b20ff636c3143bd2e41e87e7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c38d0d99d13bd13d5c873ed86fb78131c31187abbaec3855114db53ac6c658. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a920f91fa36fadb45a549466ab8bc5f58edbf72a60949a8c5ae5bf1c1f18aa6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe474ea1bd7da51c89fb2067547ed40b3d0764e7054740163851cd25b78bb05bb. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761af4a357690ce1b928cb33899cb3ca7e0e5c13a14d909b5d976d2bd55ed3d0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ab41d7828b5ff2d89dd01d89c019806f2a7a62c0b26ba6be9f50086304b953. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81ef5a3c3f2235b15edafce131551fca91f7751954014cc86e88af59d0375ef. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1414566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3edbe3cdb3c483a75b7c9ecbc07a0f18975abc48903abb611205b8a21d4549f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54540e4a79dcea564d8465451bfd37ee256c29450afcfb91c768f58d2d49e17b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eebfd563df224f13396a19fa4cfeb6632cc99a2aa1e564e2315e35bf288ca7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec29fb02c368235046f068b8642626a7816025e064ed4dc9ef2c24dced2da5a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1414567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed82426aeebb45c8f64f7a174b51c54c49f495f499fcef28a87f813cfa1c653e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4601dca8bffbb3e93a21daa66b5e05dff597e49987fa31d01ac0019602da40c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTHM10700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5236967868248cb0b3e2ac8824ca3132da28fc34e01b23bc600f034329d0827f. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c734807f3dea8f4136dfaa86f3a0a20ecb4ff14fbc32f063db5ece6ac46ead9. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfeb633dd0c8aa6f3615e0a97835b56d82a046f9cac7a01d8c7abc87f4dbf429. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc1f1a5add36703f75fc9fc8aeaccd07779113641db9110a4a746d66dbb8bac. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea0b5902a6fded52f73b93ddb44516973da567feacf4077fb77d4845a304ea6. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1556824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570d2f0a0cea2ca2fffa8bd5f8fb424a06e0a0eda57405faa7385a75c563651f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a920f91fa36fadb45a549466ab8bc5f58edbf72a60949a8c5ae5bf1c1f18aa6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431b1784c9e6fa60cb3aea4555a88b904faad820026de5ac9f4ac254a665d8b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eebfd563df224f13396a19fa4cfeb6632cc99a2aa1e564e2315e35bf288ca7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR14000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a1539afd086bac5986c129b7a558d50831ff6fe77b72724de3db256ffe4724. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe62d472c68d09cad5610d4985aa67a5468b1be8513907e25549f7b79294b3ad. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb27614c0a79a783a14207dcc85d240a56ac6493fd8bcd76c60a326af2ad339e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f753600cb390b631eeb3d873617db5ac1451cfbf0be1e03e6dd96aeddcce24. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1daf12ca92768d1679eb5939d48c8e973423500a47d67a43c7a10087904ec75. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c1f338d5fc4b491808cb3dcbc64566243c6c94e58aa19a007897daf3e611dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ac2570cc04dcd8894bca832476efdc5c70c1dee4c032e1e0c2645604cdb545. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR15000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf775bd1b94b6c1fa4e119d54c82b145a54f5ed2a6794666636055bff5277f276. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3edf1713b4a9f5c32352ab1882d14197c4707c360be59f7a9557aaefa7f824. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1f4c042c6de0a2323dcb8b0ac56ffd38ccc0e1a2f56b4b2c36c53e0a31f064. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a05c3dbdbc371136f05af5d039efbf8e8a00ba4a6b21de00bca201a582a20e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN10400313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef99405a3900ebe421785037f5fb5bdfaeaedfda3e9acaa448e5a389a3c7b646. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN10400314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d45e173b994030271f9dc313f2189f031357e49d551acda123ad2aaa7c85fbc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8d20fbe4d6491289be5e7c0f823c013bb0101d6af2bb31eca4e4bb5405f596. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74f66bd628079a16a23a1ba179cfc9637a8c243b4529a03b79d8f12f9af2238. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN10400292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207b54672aaac80037b36dedcef4a859c086e8bd577ea2d9d13ef1c8945d2863. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN10400293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b407db4a6766257a6822e3a9713614100f629e8758a7f523754c1f232f5bd18. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9458ba98957677d347672c8d031128b66e33181f25550367cea2ea7acf55401e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a90b5f73a2d0d5b9591a229b4472040a48815b325a1f1d3ebb86873106d7f4. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e61dac07af1f93c832a63117b1f9147cdde70c6c5581e4e77b2264084131249. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfea139ac57e6ba48741fd9d665ca4995fe5a58d88c3acb2e04c34fce0a1efa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11000468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a053dfdaa6ff36d99c709267bf41e2ffd9925e41e2ed9d135344d4d2ebbf890. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTCN11000465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7738a19081fccf97bc901aeb085b993fde3e862374dc39af70cbb95301b9c1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV19400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f6070cae3141aec0cd97c69032ebdb89829652d1f17b14cdb106a5f1774a3d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561278270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d18de1c9b1cce4abd225ef9993217cd56d272aeabd66509f253a33f4f0edd01. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV19500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458ad5625150de54f7a5411854bda9fd2b68eaa6577b1f41a49e239fe400307f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10600315.
Splendour of Guitars - Grandes Guitarristas
Fado - Special Edition World Heritage Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe44fab34801eada52f7240756e6b6f8765313955ba18aa5706d183b3873e7f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd089f62f6c773c9d674aba0171a036b09907b3b6c67f4e8e8907e5f0144e7267. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb858750bf1450344fc1faf43815851a5645d44a2a698ab2ceac6384316664f37. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV19100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9766cdff12a06f16e4d99e0e3f43a95942857661365a9076310c0cb215c2cad9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52409932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d31aa7eee8b00a53e514878d1446393657bb0de42aaec1b6013e4c96c28692. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV19700197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c8ad14719caf4e7410a456922a4076bf5da7476f46ae0d7e5975a1b52c8d2a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a621badabaa2f985eb7362a470af7ed02d315e4d2cf9c93aab9037fc50d0e52. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bd3e38d30477e10281f4a210b6495c06bc717a296e02ebac5244a266adc628. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV19500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dd467adc4203dd3017e7ace5696147176b9d1b43c5a71e7f5b6ff3a3ec32b5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0192323ddaf213d47dcb442cb6068a65af2023144b3308971b90f3b52079d0fb. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10600313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458ad5625150de54f7a5411854bda9fd2b68eaa6577b1f41a49e239fe400307f. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTOV10600315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd199f4af07e6d8a6db13da45225734c2a9426effe60cc4f8aa51eddc5f77077c. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTVC15800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cc85b08999f519f582d1aa348b72debb3fb464438185bfa9209065f66cd4fa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e49f9a9b3163d7521b039e025c0cffb3b97b47e0d384981878ea51678a45e8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c38f1acf292f816888114ccdf0b259bc912030785e22e4c8e1cedb1f3f0061. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeef8fc6e672daece5fe50acc2b1307b52c227a54552d2e465d518987d5eeb49. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431b1784c9e6fa60cb3aea4555a88b904faad820026de5ac9f4ac254a665d8b1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761af4a357690ce1b928cb33899cb3ca7e0e5c13a14d909b5d976d2bd55ed3d0. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe474ea1bd7da51c89fb2067547ed40b3d0764e7054740163851cd25b78bb05bb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebee37e17937f28e5b66a8e1d06b0ba55b583fd40fdc2b1981323fbe4b891c8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf775bd1b94b6c1fa4e119d54c82b145a54f5ed2a6794666636055bff5277f276. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c43826f864d7f431f73f713be740b20508960bc776fd44d48cbe9aaee92a745. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844cae40fb0ed09f982ee48a9682ec94ed1cc504113cc510a04bd8519974488f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c927ff318ad19bbd5c98d59434b8c4a63b4e3657e0292bb2dc3e366721d1877. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81aed2459a3b751299f4da5581816ee717d6c0d2875ed81eeb7edbd4b0f25a7b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05856f92e8ff0fa149cfce6ca64fca7527ee13fc540b9758bb7fb87a75c39cdf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000068.
Quarteto de Guitarras de Martinho D’Assunção
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f9327973707d317dcb3d1a0de9efedad34c388bba8d784fa841f214626b7a1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54877bdd615bfb313959fb5d977eb02b785ca126d86d6dafabdabffb9b765b1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ab41d7828b5ff2d89dd01d89c019806f2a7a62c0b26ba6be9f50086304b953. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6308d1f3e863c0489d5820a5cdce767d616d85d7242dc243adc9b1b5440f5822. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d33a4833e57fd0d8e18953caeb5926ae1b8d684b66d7d06d19c3bcdc090441. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480db912c80932012feef62b82d734e5194db6d876a299bff0ede6c39f1706d8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3f8a9f786fed180d286d26c9e54a56409cb7e4d77870997085ed0ba0dabcc2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89e7b562e3704099acbacb242abe6ffcab2f1aad55df105b406e0f41cfa83ab. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d3d2c1058435e8acaa195fdb85ecbc6241656159c8dce4bbd5486caf0817e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686d0c3922090c22b52d28492796dcd2a7390c2ed58c28ee154c3668614d8134. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661199aa9e99f89daec054c0953fcbfc463f7f108f955c7527763df366b45958. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR12000079.