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 0x7ce57b0766e57d6a6a3d4ff23d0f1453de353aea45b183c27050993dfb48483d. 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/bcfc794f-df29-4666-9f00-871b2cbcf04a.json and https://artists.proofprofile.net/proofs/artist/bcfc794f-df29-4666-9f00-871b2cbcf04a.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 0xc8614e577e1af7f03c6f4fe4da2a28f9482c8ec24e98236efacb1236ab993b12. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/USRO29403171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a414aad26bba2e3fcbbf78d38685005552dd4c3d621932390aa46d97d42263. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USRO29403172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b816685d3b332dc5923f6b250d38fe725bc2fbaf31c93dff98e5561f9d753c8. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USRO29403173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed07a2ac43e08e596d0fe4c4ca35644e99fc50ae34de7ca903d18c95d9b6fd41. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USRO29403174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be10bfb07fc36309d79139af07045c45d8f3c559262a6ba41fbc3b300d6bac6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USRO29403175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ffac2971e73f37779f54829e2cb5be77d4ae8ab379c9ce63c03f31c6dd154b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USRO29403176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9884787007ed50d7346d4c8f4b3fbecc89f33ddc98f0b4c1e64e0c966da64b3c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USRO29403177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8841c46508c2bc94f1b4083b93beeb18322320e3e379e8b82c4e7e8a4fa23b02. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRO28601671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ce4ffd0e7ee64a08dd81ce9534029e71a5152b2e219fe6a2c4b4a88a35eed9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USRO28601673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ba52ae31e6b3aae3f8ccc32089dd3c6878e8fe3fd630450e2f0f0022f99d3a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USRO28601674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72224f62c326d7f2087b523931fab5bf2efb39d23ef8a2b6c98572de2949dc22. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USRO28601675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa42ec5f7cd658ecabedd5a4707b679864388108c8e7e16ced29cc323045e14. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USRO28601676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc10ed36ef296b24e22a9f1709041099b962048f97372cefa07ec5fad3b71cc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USRO28601677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2577b53669ec5b7c9729c0e7c52c09ab32f91b15569ad06056c2873717ecc78. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USRO28115002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb4ddf421a906cd762747859c2fb80abacf195b70d002adfa9a6d89d10c5ddc. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USRO28012505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973529eb1553335003927c8b7c22c9b276d73d34bfe990863fc2a32c71490174. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/USRO28115001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf619b1fa52dc594789326ee1a6391926f6871e9abe10c3ac88c64e92c2f60243. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USRO28012507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cb803c2b7be1dd87820613979667c36868c9a2fba41e60166e8e5540d0841d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRO28012508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f8d0403954e6cca169750b7f4589b26119a2317f309e1e8797af53e9e7954b. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USRO28115004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4301c9a1bd701c82edd1546134bfe5d8cbed73223a87e7f9c822bc221552c55f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USRO28012503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abc97b05df243aa0495b26940beafcbd2d773598ba991b3509619bde875d5a6. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/USRO28115007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33bca8e6d9d131a9c087324019067456c7f578776e150f593eb19683b0e7451. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USRO28753110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714d16c0734ff23fb17cbe59961cf2320147022103aad8e0badd2edecab18afe. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USRO28115009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81594b49233ba9e721b42f4b06a1f3f358eb5eb59a49064f72002abdb508fc37. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USRO20040502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82baac6fd541598abfdb0e8f62221ac0b08cc5880b49da4c0a8d85acd31dabf3. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USRO20040507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abdc3bd78aa2512b541760e1c105ded5f961af6455b945873ae0a4a433dbfe8. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USRO20040508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac72a9d34eb07b975bd6c79edbed56c71fe191a557884571a8171fbff21275b8. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USRO20040509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5035536aea67a82bc5993a4b378bb99bc0266260f8def44cf2f1b19bf30bae6d. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/USRO20040510.
Ain't Nobody Gonna Miss Me When I'm Gone - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb42c1301560a486bebee1bba8146725e11994f3514b34155199713273e2efe. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USEWC0771575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549def462ecf27db638eb7008141ce36f4559f2e98f73cbd18871fff8f5e84e5. 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/USEWC0771740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad715d8348ed631fec8ff8a575ab3c823174fb7688aa01a3e14b70ace38dcdd9. 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/USRO20040505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d3b265ec684377e9925edbfc4f26d1d158b1d29b43e15450d900beabda5f9c. 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/USRO20040504.