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 0xc7edd8902eacff30b895e9a0143e519528bfc9a5e112a61b8c6ecdbb4085fb31. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/458031c3-dd28-4f5c-89c1-cfb5e62e5610.json and https://artists.proofprofile.net/proofs/artist/458031c3-dd28-4f5c-89c1-cfb5e62e5610.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 0x7d5a11d9caf05043410b86531a9ec839ac548ee77eb403572342ac18186a0b9b. 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/ZA56E1700997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4098d65047143847ca6cba46a8dbdd89c1ced0bd57e384247dd12ec2e40cdab. 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/ZA56E1700998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0758b8e1d0f40af553d3f86283569e247c6c75ab2319c876ae7ea30afbf8f4. 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/ZA56E1700999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd21a336510df046159e62f2f53b74575dbb991f9c6fcb3d1266ea1d66e17ad. 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/ZA56E1701000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc74e60e3db4a090abf29db81d8b3561bfd94cd2470ca7d57ad8291b7a5dacd. 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/ZA56E1701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40be2bafea0de8c1eac79c1deda22ad08b1ddecf69bdd6873c9d4769b53d9d76. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZA56E1701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75e5f7fd0c61217c09288a28cf0369ecf8d2f72ec2293f1fa51f38f2bbc15b4. 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/ZA56E1701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6bd3726de3eaf808b3c21413252b145b2539a2e82905ec0e5eb8a172db9cb6. 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/ZA56E1701004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a06359115e9d03851360e3a363d2b35ddb2817a49181a10d81881b17161b4a. 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/ZA56E1701005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0673f15f22d7b851ffdb5c69a9333733b9083ed378d7798962f5b5fabc3baf7. 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/ZA56E1701006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62da3d6b5918afa666aba01a496ffd219543ff16d30017b5614752a8751864e. 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/ZA56E1701007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43e933e05053e00ecef6342e4dd62009f0c2f2fdf7b7332fe52cf3e2c14765f. 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/ZA56E1701008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2745496a2a3597b8f361811d67fa1799172cd547b4d50ec7078aad06c69afce9. 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/ZA56E1701009.
You Too Dey Bless Me (feat. Tbi) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307cfca31b94c5cbc7b7d9a9e823057ffb990d4aa4605d6007003ac5685e7bf8. 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/ZA56E1701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dda86cc958b859a65081d4e87b84ade07ff8a09a1cb35498bbdb2417f91cc5. 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/ZA56E1701011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312dec72b1241a8613ddaf6254f6fbec981bd19e39aa0e0bb727febb129ac261. 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/ZA56E1701012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b87469d016322854b0eb44f50bd7cb7709ec048fed40255cb926e1754d1163. 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/ZA56E1701013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7493cb00d234de7b218beb04023c28a32fa166817d47d4c88611f1427dc52315. 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/ZA56E1701014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c596e1db5a07e56cd8e09d84435affed39801ac4ae0d4ec989b96608715162. 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/ZA56E1701015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f370b8b4cb0b5e46f2017e3a1c91d2c4cdabe04bc25ef5a9e26bf0f2b77ea9e. 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/QZHZ32180688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a543a8855a1b9ee0a77678c9328d0278870d165295eb99037d38b2d31b6c1f4. 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/ZA56E1700676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ab080c7786e8ba9a05658c2082737f07fc91ae9c43108b15441f0ec2ed35f5. 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/ZA56E1700677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3310a90cc32fb1e88430973e6328496854ebca9ff7ccdc81f8a8db5981e0e5. 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/ZA56E1700678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487a36d27df9131dcee58c1e44df54a4e90f362efaf39c1a36b3d3a495c001f5. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZA56E1700679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b32d10397f8c9eab64984e500bbe9b5fedc3dcae22eb81266c858d2db4afc82. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZA56E1700680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517628f6deb83b79c332600d00780b6011ef4cebe8cb196fe8bf828d47bcd613. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ZA56E1700681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0753ef8734a05e9b5244deb61c8cdd1b4512e284f3d0c521f92c538ac294b3. 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/ZA56E1700682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a01b69af811972f228a39edec965b214abcf6e50d74764bae1c2999343c81d7. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/ZA56E1700683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dda640db2efc3b188de986a6a21b23077c137e1a97bda43ced0e84f302bf5a. 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/ZA56E1700684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc6ad1f2380df2079578ed54397b1cd795e980a03764f4b79e34a88dc005d42. 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/ZA56E1700685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774d9c5e56d2adc7243ba46d857cf716d1663ee06d2a0d201e8f27cbee5d07f0. 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/ZA56E1700686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9836a00af05d5a1d0af2c00fec242e6aabcac50c6a9cbc0ee8fa994f8f797d. 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/ZA56E1700687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faeb72323798887bb0c3f393c91d8cc88551ed43aafd6c76bb33fc83fd72749. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZ5FN1705783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe791be291a44bb35412164a6eb2ec02d8e79f49e12d957313cb1d4638bf776ed. 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/NGA601900241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b2516a8fe017b79a76d925be088ccac8c5451ae99286f96a38501919356366. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/NGA601900256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3959c1a6f3c2037fcffbc9b18cd15ccd09635aa1bcaad42eae15819b8aa135. 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/NGA601800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d8115c8f83993114e7126bb548f74a842e1ceb6e3720271d853f4e47798510. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/TCAEL1959647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9813831f8d90a7da4c570ad94df86745cf756c933262d9723a761a42b2c568. 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/TCAEL1959683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ac941034aba4994e8b5c6a0bdd50bc58b4376785310da4531bd7346fdf4f7c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCAEL1959727.