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 0x26879a9791fbdcb53a2a46d995e55b3742e27ac83d3d46de41664907c55846de. 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/6e670575-a5d5-4452-8afc-edb8671570e1.json and https://artists.proofprofile.net/proofs/artist/6e670575-a5d5-4452-8afc-edb8671570e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All I Want For Christmas Is A Pony With A Jetpack
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 0x1b958c927faf14c2e58285e94f1eea5226f34c3f7b4c04154bc3f54fabbbc0eb. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBLFP1821005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1425d8fb69c3bf04ba87554f5103e8143ee2db5bddd90d0876b0ed8093e713. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/GBLFP1821006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc795807a0974f64f39e90361a662f8f9b6befd7d81030f6d5b6bfc7b082ad266. 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/GBLFP1821007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70634fc50e790d79ac8efbc4130418be7078928bd4ea01566e3d028f34820e74. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/GBLFP1821008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee20916b238c707aecdde5c3d5cdb765340cf5134b0834990c814300efda0d5. 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/GBLFP1821012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229a65048d0959bef450235bd90b53eafc8422b52d6e4f7cfe11c031507df0b7. 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/GBLFP1821015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfe40534e6e541166d876154018f0508f3529cdd3df92918c7ec91b382ff1c2. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GBLFP1821016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e56bc67ef5842d00feb96e2843918fc28d143cf4be43320400ccce234ab68a3. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GBLFP1821018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37f2d8a6a5aa3d9687236877ab0e1b1fc20b99ccaec51f208485db5017dda69. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBMA22060422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b45dd32bfa60aa37d3133816c970eb33dfb841a0894a58472ba66e15cf2f3c. 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/GBMA22060421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6965f5b5cd7d8e1cbde2a8992ae6b72d6c545f58ca519c2be5f4a4033a0e77e3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBMA22060414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8617c55f319f9030f7c5fbf36452f018c48edb2061beaee3ae112c090f955f70. 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/GBMA22060413.
A Beginner's Guide To Fighting A Losing Battle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd77a2687aafd8d77c1091683399f26e05d9aa728abf5249ffc02b098b5ea507. 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/GBMA22060420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29207e3304ae4190b18d8003b5cc434d3b0eb0c3a1495de14085b32643dff3e. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GBMA22060419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1f4df68cd158ad4fd02835c74754d906ba9477ec375437f1495cc7fae36757. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GBMA22060418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e2460600c4e8a602e08c373da90baec46b88eb249d44732b255f3c907b2355. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GBMA22060417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146bf53d862dfd6cd070b0f041e0a3c16eb2a2b0f20893e277e0fcdfb693c31d. 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/GBMA22060425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989eedc68115a775f64f00153135deabe21f983ea641e038972885aa6adbc46f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBMA22060424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407397389d52861431e85d8a1c88c4a5bc7abe8ccdd518b55ed9fbb4e292c895. 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/GBMA22060423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab2e62aa335551c55da7af65368fb6a780bc1b4b97eb4ae8277f1507edf8a2a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZWFM2355134.
we shall meet in the place where there is no darkness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cbea69be1a3dbc617bb3f5a74a1297ae745b2931a74ac8bf1f9aa5a936f45b. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZFYX2472533.
Nobody Knows Anything and Nobody Learns Much Either
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8026d809c05193a5d32c1fc0052b972e60d1b9c93f754af129b6e6f6b00196. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZFYX2472534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cef7627a7ece4be9aeaf46114d588151aaaf67222dd323453fa57854d34ba7c. 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/QZFYX2472536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f40200c586051edb18b8c7fc2b87d0f2974cc5541a50ef1d724c91d25a3d8e7. 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/QZFYX2472537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab2e62aa335551c55da7af65368fb6a780bc1b4b97eb4ae8277f1507edf8a2a. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QZWFM2355134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eddb80541d3695ca3579f6906b688e5cb6ddc6a9775af89b9a9137eea188d49. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFYX2472538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fac9bbc502e2b0d66256e53654389afa52dcb625f9428058213dc71893e1055. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZFYX2472539.
We Shall Meet In The Place Where There is No Darkness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa80cbd25124d280286f6da1e592414c65261b44c35e4d1daefe71acac7ec7ed. 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/QZFYX2472540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198316c6cfbf0c6814ca08960c2cf242afda1e5611d8cb060a7168b25243bfd6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZFYX2472541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882823af39756c4c029f7fd8e4f7f49a0da9cb7be9caece39a407a8c49d21dd8. 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/QZK6F2070056.