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 0xdaca29ae601ac5d38082574cc33ec28b0d6606f848cfa9456c84c0f92c9b0ee4. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a135887d-dcad-4eb2-892a-e4be254e3d79.json and https://artists.proofprofile.net/proofs/artist/a135887d-dcad-4eb2-892a-e4be254e3d79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Will Rock You (Deutsche Originalaufnahme)
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 0x89b07386e0c9274063a1a3cf7cd755764d60a2586afd8372b666d66a1f3412d6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBCEE0500263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bec3277c0c8fac963776a2cd448297a86eebe1b00bb7f8d1b7b98c6002b718. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBCEE0500264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8fde15b957a5fd895c87f4fb262fb5fe73654c85bb30925c56fa60e743532d. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/GBCEE0500265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c8bca5a7908fcca0b7cf90fd0dfdf230f602233dc0adefa26cebedfe21e00a. 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/GBCEE0500266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f033b1258eab6d6b849a58a890c600aec9d3c86ff8a1f20d7fdb6cf23842fb. 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/GBCEE0500267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfe877dbaa80c330447c34bfb8aea5c2205d150d196ca78660c4e94400f8269. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBCEE0500268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a56b73d3c3d3c2110dab84f2cf7fcb33fdc644a5dcb11a94843da641872742. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBCEE0500269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80702b981b7b6f54dfdcdfa8d5e0dbacb0c767a962fa81bf51fff07ac193453. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GBCEE0500270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1237bd39252d264fb2f63c151500225e3664dcd3b0207655dbaec649e8544f6b. 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/GBCEE0500271.
No-One But You (Only The Good Die Young) - Deutsche Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1286f57e0071c9a762bca7dabdd2b46f2d0d30d48d247da3bb56c3dca3390766. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBCEE0500273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8318ee26da4a4a7df372cbcb82ddd7b953a878fa757da0ec3378e1838b551709. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/GBCEE0500276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa450ede21b94858c24b0913d0ec5cc545d2a22fd653b7dd177447185331f2dd1. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBCEE0500282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad04cdb8717b5523d61a5daf1ac6a9f11fb11fab9b307c50c5f847105254e6dc. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBCEE0500285.
We Will Rock You 10th Anniversary Edition [Remastered 2012]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f033b1258eab6d6b849a58a890c600aec9d3c86ff8a1f20d7fdb6cf23842fb. 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/GBCEE0500267.
We Will Rock You ('Wetten Das' German TV Live Performance, 2004)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788ed4b3c8a6617ca1bb0e77192d23ad3c5868c70502f25eb7d377a2630bde97. 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/GB01A1201352.
Radio Ga Ga ('Wetten Das' German TV Live Performance, 2004)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44de7d9e6ff634b9f2086e0813b080a0a4654afad92b3a0668182bb43bd68df4. 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/GB01A1201349.
We Are the Champions ('Wetten Das' German TV Live Performance, 2004)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9bb746c1dc874cce8c770f8b5546adb7dec48eab2cfc0999b535cc19ecfc9f. 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/GB01A1201351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfe877dbaa80c330447c34bfb8aea5c2205d150d196ca78660c4e94400f8269. 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/GBCEE0500268.
Somebody To Love ('Wetten Das' German TV Live Performance, 2004)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167950f504f33b4709e7cb02d593ff688b118c2326acb6b6ee9ce6cbee828404. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GB01A1201350.