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 0x7f6258adfd5f3212f4787789fe40c85821a163ee64d06686a6263cf2a2e5aa84. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c369ef4-7874-4e81-8536-f7a1a6812875.json and https://artists.proofprofile.net/proofs/artist/1c369ef4-7874-4e81-8536-f7a1a6812875.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 0x2c40cdd163f33373be15884bd681990e09ac3bd4d58939f8c887b697d04091c4. 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/USVPR0410376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539a26acf438aa8bc175be0ea08103bde8055702f46d335de9b964820ac7dc39. 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/USVPR0410377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad8104dc2511c2e39335fdecba0fb55406c2f9f0cbfd8d514a75a2c8771da9b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USVPR0410378.
Something In De Muzik (feat. Claudette Peters)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0061ee97f986f2a570696dddeae3a1e42baa08590647122857f7c3a78f0ddc4d. 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/USVPR0410384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8044cc215c25cc9ae549af329dc46553b6207787b7880f91653fe69110ab4377. 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/USVPR0410392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6306feae1d5f1c37968ca33b493522d63da614e8444a3abc63142b9e6f930fe. 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/USVPR0410386.
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 0x7b67766f2518b80eadf541227b24964812f2d143817179bebbf695f4a472d4dd. 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/USVPR0713879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40630ec4650775b5056f6e79c7267878846675f4538cdd807eaab4d07f50fce. 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/USVPR0713881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de139b531c9cf7f5d129404270f1b3d555d706332f8520f85058845113aefc8. 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/USVPR0208048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50526034497e72ac6fec9d22be3afdac6fe2b0ba855a4f74a76bfe245b129c1. 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/USVPR0208049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302e98e269ddec771b3815038b09c4ee6da665e9158f398431b2733ca7e811bb. 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/USVPR0208050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e590897832771e61b7e6d5403a4db9a597834c43272885da2abaf2262967e0b. 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/USVPR0208051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584cbca63ee7adfd33c0c89f6a06f72b6ad098c75bdd2d0e2f9371e13a5236b7. 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/USVPR0208052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61202f48dd1cd4b082e25e765c5056adbdd0dc2c0ac99f273f6e8990ddc0c64. 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/USVPR0208053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2071d1de11a3c15477888cb7d278d42720a419c41c0eb71731572436373ebea3. 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/USVPR0208055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d090d1a3fb78efa150700233915ff5de701d390ed57c0d976bce974a9c9eb9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USVPR0208058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecda5e7ffa04f06cbfbffebda099bfa497da62ff804a5549dc4dedc34e743ad9. 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/USVPR0510757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd120826b7c6b7e0e9b44153eacb1d915382c280915805e77e0d8da34ed18e58a. 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/USVPR0208060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c83d4463353043376564dbe774e7b38cc14b7092f1a4228551a9d66f5669484. 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/USVPR0208061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208f542b3ad0389eb5104d7e9b995226ba025826ab84c435fd95ddd357744fb3. 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/USVPR0208062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8932f0d5bb13115f301dc264b6e293d3ab1c275e96dea1abfa4ee30402bffe00. 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/USVPR0208063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3495aa81f9bfae13d91f73599dc08f57b3e9b57d268524e13825a16427dfb728. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USQY50966265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ddbf9248cf1fa4202bd84e5636c5046cc2d30aae8323241a17dccd39395a03. 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/USQY50966263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206b924416518419357b1959a9e1c3f317726fd84966dc17f16549b343ef976a. 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/USVPR0107407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbbc4beca718f340a3a223a6a0bb1cf3cdbb5fddbcd9f2ec617385b15b0aa5a. 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/USVPR0107408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d79cd902ba937fb5b94e38278262cb924bf6c96be3489cd005172c8761cc769. 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/USVPR0207868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22583f920452fd5a88b4440249f60af4e3c665dbc31ffd3c1ba61ce47a23fcce. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USVPR0107412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b6bd47b731711a0eae3d60e1f575645695362442d9b8962b4efb40195c7b24. 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/USVPR0107413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e628c1d765cbaed1870a1068ea1fb2c470f10a21e42032e286bd9110c34c4ff. 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/USVPR0107415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95941b4fc2af056f6a08232d6b55bd1bccff031cb369bd6a32443303b2fd5be0. 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/USVPR0107421.