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 0xae5886f0eea59a1d721ff323d3b1a1bb199efa5bd7d14d801d897e36d940409d. 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/49849cc2-fda9-4177-a649-3dc2bd874acb.json and https://artists.proofprofile.net/proofs/artist/49849cc2-fda9-4177-a649-3dc2bd874acb.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 0xb34aa1bd5406dca032ca9ecd29be003f21e4c19e4215e7a69a3b10949f66da8d. 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/TCACQ1648210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f42f2c804c9f6286f685d44d730a2fbea19c49368f940d046a035a0b954ed38. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACQ1648214.
Wedding Song (Never More Beautiful) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31096d38d35b79767107b64611fb30f5fa6d106bc5c93b3868f67f74611e904d. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCACQ1648216.
Can't Stop the Feeling! (Country Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7b886c43b4034473e9b1f0b86b9aecb625b311941abb8289c4651a1d7f146e. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/TCACQ1648211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4b67d221be30040a0b6dcf40a32345537b7d6b01e297ce0b0397de2a2e784e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADD1756621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58d192444662e1a88456b1b17fa6e6eff60dd594a2656c3ca553cea50686435. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCADD1756622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f72ba9e803eb7bbc49443bd13a814bea240dfff6305fbfc1fc641c9d59bd7f7. 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/TCADD1756624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa52ae91a90e856df15fadcdb2274f3267eb109915458ecf48de99e0e560de93. 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/TCADD1756632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a0b5bded943890dc913262c97ec33e4de91694ab3e739c405335c3808f1f06. 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/TCADK1707892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e49295f6ef661fe7c869a6901a13288c1be969357738edbf9e1e778d70a497. 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/TCADK1707896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f735af65ee79e6c066d164a038e577ad9ef9578055dab3339cd94470bc6983. 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/TCADK1707901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6561dbe54e3146c6d0f49b1a887a0709c883c12acac51745203b7a2cf1561dcf. 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/TCADK1707903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cf1663dc865eb941a6b6c786fa0935a35ab13445a5b44937d806176f756d43. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/TCADK1707904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12cbd0bfe66520cdf1c0cdf13066f27b5fe06127b2fb8cf8059623af6e171e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADT1818530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6cff58e67172d320408b4dc3caccdc4e5dca02ae860b4583dbb1aeac53396e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAEA1997255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff9e0d980c533ca2a429c686c6f7b2b54bc5871f3fc279bd7f2e75644a448b3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDA52056997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9dab341e13a948492f84fd74c6b66a9ee71d1dea9be50e5f4c687de59c160f. 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/QZDA52056998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2330359e5463b91e7df3406d86dbd0365b9977965365dc222c7128166e5c458. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDA52057000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6cff58e67172d320408b4dc3caccdc4e5dca02ae860b4583dbb1aeac53396e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAEA1997255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205c86fb8649cfa008be16a88c1352f61478ba1cb727de17d552cc1c23b8e27f. 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/QZDA52057002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12cbd0bfe66520cdf1c0cdf13066f27b5fe06127b2fb8cf8059623af6e171e2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCADT1818530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0879d56f884cc9b94d9aa4afcdc7cbaf8305ab6bdcd4d9291683397c78f4fc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA52057003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ede8878cbbebbea6d2c9f3f426a885c8138f488b7a0df0a836a38066814ffe. 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/QZK6M2024478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b357d1e04db23e6cc46e8233b48a171ca23add51cf5a67fe17e24f9992b95e. 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/QZK6L2086932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25f451487052cbd992b6045ab315a94b40eaf960dd32d3781560eb29bbef734. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWY2017424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbb2e93ab360ce7988f62895bd6b41baf0bf01a1745012198ca48217d1b539b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN92135237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec9d5c150869b293a4747756601d9bc0329e2df936bac8edd2b9c4913eecdb6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZK6L2165738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d47cbdc4a458f3ea5dbf0f7030c8d0d77f00cefe88ba076b2591b6d1e6d8c9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZPLR2359945.