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 0xb3b12d738823be60da7309625209bbc1bde397e0c8ddf76c32f43d52f52606a6. 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/bab09090-81d3-4d8c-b1c0-c6780897e0b1.json and https://artists.proofprofile.net/proofs/artist/bab09090-81d3-4d8c-b1c0-c6780897e0b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hell On Wheels - Season One (Soundtrack)
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 0x1a2575f5d347d4d2d244d6f3f53d43b52379865c48bced4ba1f5457f283a1e17. 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/USKO11201632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb885edcf756551b555570999e85d3ebe87925aede7e455dcf6cc2c63a51662. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USKO11201633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bae2a791bca3a0b3ecd1199342296ade7a4fc8a6c650baa0081389ae387eb8. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:40:38Z), 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/USKO11201634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8bdd82d04ec9bfb0fad3ecfcd30239996353ffc6353567767fd920de0adc79. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USKO11201635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0375e4766ca85ac60fdbe82942f1697d3de3f1a931df8eb35427512f60a22b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USKO11201636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683b09fb4aea1c43c61407df0bed64274bf436eeed085a9c1a3bc4a9f421a860. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USKO11201637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81350d83a00231757688c93c34bcd29b554173c2e1793024d6fcb3f114aa48f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:00:27Z), 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/USKO11201642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd341d75ce88915d12c3b3f74bd997f8dc01396f7599b5fc2b02ea4bd19a248. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:03:12Z), 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/USKO11201643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74975fc716f91f72705fed1a926bbc0d86e83e33bd96a75294f2a9ff460483de. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/USKO11201644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2b926f50e4ee61922518785734bd24154d9efc1fce99a45d7ebd625b0b90c1. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USKO11201645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3cc1001d112bae9d07ec09dd68ff48ffea07c770b35e6bc92a6c047bd572db. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USKO11201646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11ba9a98c519b6b9c144147021d8713dba4ca74f834789b29de9ba68689ede9. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:03:37Z), 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/USKO11201651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881b4358d850fc52809232788172e2374023d0f03dc9e2c084e09d9deb61e92b. 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/USKO11201652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561f3ae95342e74fcbf7515bf5f3c5551f18e5a19d41d1d0a514d8071fa07a2e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USKO11201657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42aec691081df41671fae42aa33964b99e83377d8047bee89d9250343726a3f5. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USKO11201659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc10b3e837a5577962bf7fc7a068ee6b91290c49dbad400f597898329cc0587. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USKO11201662.