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 0x55999915b9777445ac00cf186a51cb0d1610bec7c87becf8152796acc2199a61. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5dd271d-e376-47d3-abd2-e1a0682697e6.json and https://artists.proofprofile.net/proofs/artist/e5dd271d-e376-47d3-abd2-e1a0682697e6.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 0x8c929c7cb26dd792cb17a28a421506c338b9b5a122d4d7e130de24dbfb6e784a. 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/BKSAI2400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060835925a38c408c18ff7a71d519cdb373b504660e7487b0e9a6630a6310e94. 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/BKTKU2500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401ecc78df0c157b3103a8c1ea808fd48b176db03524a380604c1028fac4aaef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKTKU2400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f7f186e163caf2400ad3eafb665ca939cfb77299eb47c5869c9a58ea099403. 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/BKTKU2500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a122a30d5b0d518dccf183fdffaac9b9867a5a063da1a225a3a7d7251abaff1. 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/BKTKU2500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c6a28b61232d315208c318c66325d052d336c18effa451b645be8f6be98aa1. 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/BR90B2501144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c77830c7e600ebccdcae8ed77f88f1fcda8336e5290f09ae67264b93d5f6b6f. 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/BR90B2501154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1450c18cc9dfd8d9be4f53a10c72a3d249dbb07854570f099f491e8ef939da2f. 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/BKTKU2400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca4ddd185810b59bd491fb47bc25997e9c66adb13f4541d83d198f605ad76e5. 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/BKTKU2400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe62b88a4cbb2925463235aabd847597db4e72c2c41fbcd306f1f4563e1ae745. 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/BKNU22400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df2c5f57712166982cabf3d5a2633ad7e9748472d3b37f4830fa26422402bca. 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/BKTKU2400088.
MTG DANÇANDO SEM VOCÊ (Dj Marcos Oliver Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59acb9fa02f2a8c4659d0645ddd2ab17997ba28cacd829050a61d52b48a524fc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKTKU2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d372f6add4571d9b411ed92667bd0488d330c879453dece505e1e127e359190. 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/BKSAI2400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0d2fd3d027add4515711fbacd5e7597f195fea44f6427cca02c4817a5de653. 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/BXFRF2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c4d64ca57aec4230c0535cbdf84832e154b948b0317f22ed607305ecffcc28. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKSAI2400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26240b11f99aabddb4e5bfff53af9694dcb74aa7bd8e9b7674625dab39093a89. 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/BKTKU2500243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458bab6f7d6de5e84718ee5ac9293fb0dc091ad2e6ba5a7a3097f7ebdd966d69. 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/QZN882586946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555acc3e537dc9ec4249a8672a1ed237e3c6197eea1f2c79cd9a7571146b7015. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZGLM2541348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc267eb1d354af1dd3a32c187dc9aa430d8b8fe77bd6f42a98c8bfba1a012321. 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/BKTKU2500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7196934bc19d1b9168f47c6601c6f567775f6b84fc0d82a46df57e3064d8b939. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR90B2403326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5ad682b91ceec447e1c8780d9e2f45e62028a4af9f7871a58b3df9c14cf809. 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/GXD7G2553261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ba7c48d536461ed7a3a390146f6cc7e964175c7bc12da45e5d186d947d4222. 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/BKTKU2500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc7ae216327c5900f4614a3db12d623753f6c7a1b9abaaec7993b03f1d1872f. 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/BKTKU2500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea290f3a74598749dfb978f1f3c27a4a8e3723260b87a83e8df75ac541fab4d. 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/BKTKU2500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde10d861091acbffd22ead0d7948a43f7fecc4d22e52d0ec9a0909e6e7d9c080. 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/QZNJV2361882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96b8783a04b90f208a4eb1822e0f4513b4457fd801fff538a7bb30c7a286dc3. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BR90B2402427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc8de2b6991549eb42b520404ddbb63f786cccaf64d8e66c013167c4f98998a. 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/GXD7V2405807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc85d6db96871b548a239e657495b3179e87eefb56a8c063b440fe9b740f5bf. 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/GXD7V2276093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bf5428c97280b9c9e04cbe8b5215f9336984053186829d20c85f5e6612cfca. 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/BR90B2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda0499af8f4a0255b48b897ad08308c2af742377c2eb3866a0a76056a7de769. 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/AEA3A2361813.