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 0xf8746f6ab86f473948488ae2c033e318aac1926ac9e83c1a3b954471c8f08358. 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/0f20c5f9-c25a-4094-b61d-a92f280527a9.json and https://artists.proofprofile.net/proofs/artist/0f20c5f9-c25a-4094-b61d-a92f280527a9.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 0xbff3e3e7a6286612c1b718d4977e29e323fe54a71d9dfbad7e66d9bb33cfe970. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USUYG1082673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c5588085550891257b797b7caafbb6f4fb2b35dc31d95b267c54cb8f61ee3b. 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/USUYG1082677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40741826826077ecf4fa79eae74b73e2734291f57fa531da876792f7518c554d. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:36:16Z), 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/USUYG1082678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0374e8e5306e5f3294cd4e992c21b16a62d645f3ecdda53ad6fcfc2c6901073. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USUYG1082679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f1d8c66db65ded12a0b733c9fe75975452ba775f167767e338670228b6021b. 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/USUYG1082680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bc314b937b271a8847f39ff65bed8a363686ca3c3a46e74479ce6f72baac4c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USUYG1082681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f081b3646e032d3fd1933c3b946f75226bb2320adad4cda962bfcd4ef8418d. 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/USUYG1082684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a5011e9bfed73dfb53d5ec0c3ad3df96643769fb43f6c4886f866385a0bb1d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USUYG1082685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e54b34ce30279155a0d1a95a78e5acf527f564efc39468efd2b3762e874949d. 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/USUYG1082687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3567c17b7bacab36ccc3fb5feb6996da0c30df21260a95ae8bff7ab1922717. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/USUYG1082688.
I Won't Beg You Anymore (feat. Alina Baraz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec31a6dddc7bbcb5de34a03c9f0da32c996ff93ba551feca9db987c956de43d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USUYG1082689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf997baaf424cbe0e011c7352deb3380eb9d9b00be0c2e33406c7c2672381b7c. 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/USUYG1082692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe694e9e2787bdc8e43d5eba49ab2ed9711f5e6e8a5c5eb26fd45af8e81da9c8c. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USUYG1082694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc0d2ff0c992159606de87df8dde99cca2b76fd40c4f834a6b494c4bfa00b5e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:02:18Z), 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/USUYG1082695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ec896c971cc380c9082730577f4542d5a7f1f3521d50e00253c915484c2d28. 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/USUYG1058212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c1c2c64489cb3e036f545f03fe6c8da0e74b48fda8ac5b600ead0c5eb75a9a. 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/USUYG1058213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5b32577c09dff034ba611a0bf36b88582eb6e73072b5c418b1bb157fb15a06. 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/USUYG1058215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a97288afb16b38e494f28d9677fa27486ed579f663ceedd2e81920368817991. 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/USUYG1058216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5b2fff149750407085467d95a91c403182342c23e38bac9c1700303d294c21. 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/USUYG1058217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a5b6d45f9c53af10fcc52bb47415cb2f67b3b6d3c96531a8043616df2f99f4. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/USUYG1058219.
Animosity / Dear Xodi (feat. James Blake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0223c6c445fcd2e9cceaf1b2a6c61a367b66880db2230facc2db22c0bad0a3. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USUYG1088797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015f731a5e32aab606804e86abffe9b50501c09efd3c842d2512209ab125e6af. 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/USUYG1088798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfdd965d545c32889170b30babb3ca7fb121defde896b9cd981580fc703719d. 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/USUYG1088793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6bed92d8705d12293b8b0545a12a620eddad52a2e2e7bb7a79b9b990d659ef. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:24:24Z), 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/USUYG1188126.
i'm a happy camper (when the sun goes down)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e86a14fc53099cdd871c3fd6375d8c21f2568d39328894514730a2e10bb7d9. 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/USUYG1206271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb7b2d4a05a3a81d86591ef10ced00cc87e94df1ce139d7ce78268f2c76659d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USUYG1188124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da41be147b29f50cbdad5de4645484dfc7568470dbe1ecee15f18f52c4d38d6. 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/USUYG1206246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742962136d6815a916334110169502e502660538b48e550abcd3200206f2dacb. 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/QZNB82022596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a93b90cc4170c59703ac505be1578ef6be83aa61d413cc0ea721e737522975d. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QZJG52297417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cc7bf875c9e445df1de1b19bb217cbe40eef975702aaa43140811b405095b2. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:12:36Z), 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/QZNB82240261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e4f0a8ba4cf6df122a9da6fba40ddd81bc91c5e037aa23a70ed867c6935242. 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/QZLBC2300072.