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 0x7489614f8b41f2814241fefb9ba42a1bb8b67633b5696fd5eb027d2d36c85138. 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/0f17c826-9887-45c2-923b-26e59ff19bba.json and https://artists.proofprofile.net/proofs/artist/0f17c826-9887-45c2-923b-26e59ff19bba.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 0xd9061a11dd30410ba999ada9b881c2beace3b2a6eb65610b363f3a3adc747d6d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USSA49310045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9b4ad585d7aa9fdc4f98bc89a40b572027d4efd0f69908bbbb3f43c0631bdf. 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/USSA49310041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9dad699adc1aae0d73150f7842fa6b80e7111262520eadb73dd067638b2aad. 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/USSA49310042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c71242cec745054c036722c1b6b0dc6094ed546706b952113f8b4b1a2f95497. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/JPS801295340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec20244689ee4d5b3462d44f2cc2e31bd1234a369507c718500be49b35da6d91. 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/USSA49310043.
Ten Percent (Dimitri from Paris Original Classic Re-Edit) (2017 - Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd827366ce99312e9d0ef2ca3b20ea7b156260c119110889d5043f5d8c872c71. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMRSZ1701566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fa6d57b9bf8e1383715e0acfe94c6838eb37bf1194eaeef0a47436644561b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USSA49310044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9061a11dd30410ba999ada9b881c2beace3b2a6eb65610b363f3a3adc747d6d. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USSA49310045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c86967c8b4c8ed4be45999ccd1eb9d072082649876253619ba66c3e3bf1093. 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/QMRSZ1601499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258f24554277d50c78f46d9aa533f427d2118ceb39e9e5cea9cb5391a87408de. 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/USSA49310046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1496b7135f4c9af67422817a3fff6f2713190d921425b70ba8bfbeeb6756e408. 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/QMRSZ1702122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9066a00e7924c430a3bfbecd7d4388ece89db5c49a7595c35c36226074b329c8. 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/QMRSZ1902396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe903af9d043a88e740e472c1fc580852c1ade52b46d312ef84e61d45e95279f8. 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/QMRSZ2100666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc016e4a6f3cc2c639c6c982950197069e8bc8401c9c45264129a5b4459397e0f. 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/QMRSZ1800183.
Everyman (Original Walter Gibbons 12" Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95136fe16e646c8af973d64ba56d008b2cd472635bffef6b309b773a73cb4777. 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/QMRSZ1601399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf70a3f78c8fb92898dca477bc1ae11361a964d445349480290764213a44ec34. 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/QMRSZ2000763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9881750ef8b63403495549a61c5b85cd5d0de3de79f90d71ce0c18add516c503. 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/QMRSZ1601495.
My Love Is Free (Frankie Knuckles Knuckledusted Club Mix) (2017 - Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77faa43e2d1767d050d7114638467732268a900216354e23ab9f1b1e9be473e. 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/QMRSZ1701576.
My Love Is Free (David Morales Classic Def Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef5be822fe689d4be1567b8a002b2c13f7d46d99311cfd3c5fd27a4c133c2fe. 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/QMRSZ1700179.
My Love Is Free (David Morales Classic Def Dub)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94096b490daa1d333c6f760e3f1f2bc6c1b74b28e6bb7b3df57d9b08c06ea350. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/QMRSZ1700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fa6d57b9bf8e1383715e0acfe94c6838eb37bf1194eaeef0a47436644561b1. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USSA49310044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb2bb8d59de90072b9d27a41cede2bc87000585119f5d15801a100569cd455. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USSA49310048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb0e203c14c11431cb899f90ed22f199e08799cdb1ca6dd16dfda7ae8ca1145. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QMSGD1220101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c1f4be4cc3455cd7a851d9f50cf6cac963ad3d7db5f53a19c243ad58052a2d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMSGD1220107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c44fadc332c79d64192a1700c96bbc27cf0ffedb7907381338df1152f0556. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QMSGD1220109.
Everyman (Saleem Razvi & David Mel Remix)
Ten Percent (Dimitri from Paris Classic Re-Edit)
Ten Percent (Dimitri from Paris Original Classic Re-Edit; 2017 - Remaster)
After All This Time b/w Yes I'm In Love With You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f05404fdfe3ad398c4593bac0b98aa779fc32980b4c300ac580fbc8ceca590. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QMRSZ1601384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f6ac483a0232be548760092f598b866c8e389620965d7701a970a57957fba7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMRSZ1601494.