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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a1053b12a2fd06a89186b1a3b33db048de7893ec0fcceded529bb37d552b36. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79d2a367-0549-472e-9570-8d062665e071.json and https://artists.proofprofile.net/proofs/artist/79d2a367-0549-472e-9570-8d062665e071.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0f59b0369608a8b6311da82355ab69768ff157c760b02e4265d8f7a3a603a4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1492291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e5caf7c77887ab3ce3987a040f48891e63e424c3dcb02cd86c236295d4be81. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6G2360779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71df266303751661c21a7eb6905924e710bb43e459b2b671d9af4f01a571f549. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6G2360780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3260aa205c54e56b8c185f6eb8356de26cb3756e9781ef85fbe51289f82c13c3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1492293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b1f6936ad3e783a65d75b22e3eecef8fe39423ccd4734b510de3b359c30224. 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/QZK6G2360781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5beca21fe60f45900ddec9f9ce4527ece9fd0ff4e10f9021c8b3179713b618. 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/USUYG1492295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29b1aab643c9cc7c52103b32f5027173f099d231c8c5a8e23159f5dc4cca44e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6G2360782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe166cd806c96177d4a9b4b5f928b42ed7f4ab81b6b3ec801fccb107163567e54. 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/QZK6G2360783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a37f6736362dec12e408d0ea49d4119e7320cd2b092ad934cce0a2af1040a63. 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/QZK6G2360784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97193534f9e93d4a2a2fe8f99d2ba489817682a121488c449d84c007b03ecbf0. 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/QZK6G2360785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe523d69c27ff07fd72299c151fef7403bb574a8d0f99ea4660e4ae2ff62e4206. 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/QZK6G2360786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d271e521296704159c3878984fd20cfcf7f087da2f0f9853c5842c2cdb27be. 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/QZK6G2360787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676374ef64f8edfa35b6a039ffda0a7793aa72f084b0ea0ad65222a33e7f143e. 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/QZK6N2442690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078f53b838f7e5a8922277ce7cc0ae8c7d10cc44268a4ce9c63acfde22005aaa. 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/QZK6N2442692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23a17effb09bfbc26e83ce1596336fcaba177d050c67c5fe10167230dca2d94. 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/QZK6N2442694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b10fc4bfdfa79932280d55203f80ad83f8654b40de2d8e72d6c4cb77460c5b. 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/QZK6N2442695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b542536781cb67ebb3badf119dfd07472968fe2834438898d8daf7642dd0a6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZK6N2442688.
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 0x3ba8ced5fe022896a0e964b608b14362bbc9514c410d19df77dc4e1d72a57f89. 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/QZK6N2442689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd656680e4e30fe1dadc81ca8f1ab2bde0e93eabd7a05f1e01950c6a130d4217. 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/QZK6N2442691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f09455c4726dff6b5ea5a15770959595f3a6d24d66d93f69a7ca34e9cd60ec. 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/QZK6N2442693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7397bc01d0b7cc2a2ae55aca7e0feb261b698f3e305473fa7e7a9911488243. 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/DEZC62146168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3836c67b3f6517fbab1662cb020fb2474af292dea369390bbc1f4e1679bcc00a. 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/DEZC62146173.
Ambition Of The Shallows (ft. Napoleon Da Legend & Paloma Pradal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f91b7533529610f4a9b8f2fc58a36d527c0818ecc44d51f1072a4844c0aea7. 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/FR5R00906731.