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 0xec91dd1248047d2d30144bc5f0ffbab3d6d411c3deb58c300bf44b5bda9f0d07. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cf7f31e-70a2-408b-89f9-f27390f61a45.json and https://artists.proofprofile.net/proofs/artist/8cf7f31e-70a2-408b-89f9-f27390f61a45.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 0x32f3412496754fce16eda35496508adb0f9885e459ca2c530691bf9bcf42da51. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UKSHP1900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787c87fbc0564e230f33b6ef19b1d278827bc7d928baf41646278cc0f944f79f. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/TCAGW2368140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac2e19b4ba10184c3cc42ff06dbc288a08e59cbed0adadee18b912bc1badb95. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/TCAHS2332382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9166bb69657401da8adc67e53ec6c7d40e308468c92116335d60a445b6bb7b72. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCAHS2332393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b4f822718aef19cc911a4630ca84da0b8448e9e1116fea66635d9d4196ea88. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:32:58Z), 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/TCAIO2478536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa121f9b4c1b45d646d00ab783e5bf3a0cdad8428afd1b863792dfbba1402aa22. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCAJA2468719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bb30db7bb568c99f6335473b951aa897239f7035cd74fb6d1db539b813a6c8. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAJA2468835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec3be36ad649eee3c69537ad2e4006216c11241745465eb96ce484d10eefc5. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCAJA2468844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c61448ee98583c12f1d769ad9ce3a31a7163d337ecf592b2e1270fb99bd1c7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCAJA2468860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818d2c6a9bc6451a21b3ca52d7fe0877e1b9a56c2d0868707490e57e6306447f. 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/TCAJB2468865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f24fdab82883b947a3ce084f0976ddbfe824401c1936689644945d08d4bb755. 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/TCAJI2570183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e455f9a0d0fd279a0bfbb242a7de66235c48abb41a7ef724bb5983563163b5. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAJK2504668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3457a032f1e45c5cc88e90b65bacd7bb478402b641d185fcf6094db57256a99. 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/SGW502579122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41ea5ab3d8c0bb2f3051f3e3e5379dfe6f2fd8702d1a66b465a0a918b889ec8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAJS2510572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4033f7bbfc96978d4ac4a94053ae58a696049ebd4205f0715978bcd730f662. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT6622543029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590708ec7c97bf44997bc9abd9ba7d9878c0a5a48e147db4163853cce3b0a9db. 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/GBLFP2353884.
Rapman Presents: Blue Story, Music Inspired By The Original Motion Picture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954f2ffb0032f450d3867a79728b261af055d0d161ba85878bbbea17a0a3e83f. 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/QMJMT1902485.