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 0x624cd07b6014aeee81f6301440bdbd63204870dba5bde4088b2cf85e6cded315. 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/1e262ceb-40c3-4bf2-8f14-5684920cdb11.json and https://artists.proofprofile.net/proofs/artist/1e262ceb-40c3-4bf2-8f14-5684920cdb11.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 0xb01aa88b06795990f5158b0c7575b8e0666cff2cd6e7022fa50fcec4fde05fad. 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/USSM12307543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f74116b78a74978aa5b2ac1b7354962e0c3c5149cf594dc2e0404927dadd2ab. 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/QMBZ92354416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c840b0eb2c6c86d649467b287a9e508f722ae48e233b77e7a18a72d20b5e463. 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/QM6N22433609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a302153e18baa4a5706f8c96d1ca95533d1002213275033286c6ca7d94f733d. 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/QM6N22432371.
THIS YEAR (Blessings) [Acoustic Version]
THIS YEAR (Blessings) - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4708c4e5ba1da82d034d5ae8315679f972fdcb68d917befc97cc2b8ef2abf86a. 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/QM6P42305020.
THIS YEAR (Blessings) [North African Remix]
THIS YEAR (Blessings) - North African Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31d350d239a1c99003fab2a12e94ca2d5b9f039c7a61a14789baf840d6c8b3c. 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/QM6N22368685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae063dbc787c792510738dc431b3dc46a41dc22c2d7b407546d205f11bc80658. 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/QM6N22300921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d93d2a530b85d312572f0a36eaf9d6655f395a034bb0b81d47cff7fde5c673e. 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/QM4TX2367828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf0b8032de1b102003df75b05452413baaf38e4441f983c0243cb2d9ab1a458. 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/QZFYY2339108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535c1b54cc2ffa98a1988a4950d3473f72be1d51f4b40091a6c07e3f0e1eb4cb. 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/QMFME2394702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb95cbad7cea288e9f05a83bcc16428125b3ad8f50d7f55d982ca2108f98635. 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/QMFME2394703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0208db8b3d416f21a6dfac5470ef26abeab76aa9a85f56c06eccce9ca288db. 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/QMFME2394704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae1176375916ffdfe0452c642135c6ddbb1694e5d974be39e99ba629d1b0ed1. 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/QMFME2394705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1531a41e740eef2dddd1a194729ccb34bff13d08ac71c1ad1c0b16bb6d7d81. 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/QMFME2394706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1aaf807c54685d80ab3c9ebbf9f1630f266d37da78535232622acb1ded0b169. 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/QMFME2394707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438ff0d2c4728192de8fc18f3fae0aebea495053a62ed834328e17c7059a1235. 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/QMFME2394709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236058bdbdb39751130ffd047a88c57e4d41be45804675c4e02530e874125428. 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/QMFME2394713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a85f9d96566630f781ec4c8bba9f206baa9cc55456125d2e3d66f54a4340607. 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/QMFME2394717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce2f80a4f1da6ecfbd515bbf4d2ecaa97f668d4a6e9219b4f731ab642786a0a. 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/QMFME2394719.
THIS YEAR (Blessings) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f5270ce693bf761576eb219edfe8ac355c6d5fd51b46209dfc332a9ebba152. 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/QMFME2397122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31d350d239a1c99003fab2a12e94ca2d5b9f039c7a61a14789baf840d6c8b3c. 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/QM6N22368685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f74116b78a74978aa5b2ac1b7354962e0c3c5149cf594dc2e0404927dadd2ab. 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/QMBZ92354416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae063dbc787c792510738dc431b3dc46a41dc22c2d7b407546d205f11bc80658. 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/QM6N22300921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda48b57a496e6cde82f53de4ef9b88275086566f6c78a6d8acecc7d54196b633. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR2PY1600500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbace331d8b471b0b9f5a5875a57389f8ce1732327981ca4581b12d44aa7ba4. 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/QMDA62271983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dcf8bc18160691ed4fb459d3e45cc631ec0ebc4bceffd9d3e78192b19e20c7. 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/FR6Q12100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4f41b13b8ee9e436b778978b7bce5ffa3fca1a65f8b9aeceebc67e3da6120e. 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/FR6Q11900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6968765ed5f263bed3569b9ba344126e2464fc564ca4408948d04417ff9aa834. 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/FR6Q12000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9454b85671b66d46272204bfedb1551e7a05e495f52d83a6b300e64e1685c7ea. 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/FR1C62000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6213ab3d53b7f9a5f23212e60b6fbc52924278a8cb1461ec748c71a0eb6a28bd. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FR6Q12000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e96604a9938ef239f4d52b5b24a70449550aff841bbc29bfa11580636cf8a47. 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/FR6Q11900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f14550b5e568abebe5a090bdc0e567db6876da195343d55dd686c161bceef4f. 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/FR6Q11900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05791473d4424cffd420ba31532fdf7a545c1854e5f1c6f2d733ae37319986f9. 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/FR6F32000370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dec88a44599eeb26261de08de62d2d2e872bbcbc2f15bdf8653024d1e90ca6. 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/FR6Q12400021.