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 0xb9020e450689f4b355f4ffed63ba6389d081a1916f18c0213ca2df16693f9e42. 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/1670a782-a6fa-48b2-a881-e35ae26e5ea2.json and https://artists.proofprofile.net/proofs/artist/1670a782-a6fa-48b2-a881-e35ae26e5ea2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ain't Gonna Do You Wrong - Tribe Vocal Mix
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 0x5d8bd0f1ccb675350232c4a5a170eadee2f91457d35ceef68736fc5958d80c68. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKR6V2322114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6582ca787e6ba0dc54112ce9609a20d53d71d10fbc1a5b88fe391e6b3fe1fd0f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/UKR6V2322113.
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 0x059b5f11d29c82f34cfbdb3a1e8dfefe6584b8e4ad4262cd0448ea837020423c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB2GW0901000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400c33450cdfc3a76ef7483f7f93070489f9eabe737cc2057fdaa221b36c5d56. 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/GB2GW0901088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882b93c00186d2f12fc2375b916ae106dcc253a43b00f152a124bec0581894a6. 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/GB2GW0901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c07e14c7797663b2c64c362d216beda8f466b60a242649c5de91fdfb98de28. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB2GW0901074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e95f07a203ef426e71e419f6a1864b5ce778f3cacc32fd69bb3ce6ad09c36. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GB2GW0901072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167624a9707d381f73933a0984c1b20c9eb5fbd47d4b60dbce42500cc04e8de1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHE192000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2c4318ccfefe7a0d699bad6f7c168e1e806ee1ef146a0c7fb2df3f73f611d2. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/CHE192000126.
Free Yourself - Zepherin Saint Tribe Vocal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb940a20561a71aeafec8ac8b15ac45288a69ac171d495f0efafc471cb85b52b8. 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/GB2GW0901033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6bbb069ac2aa9e2cc73994b997983e280581b21a14e770ab6f9388ec1c6a76. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB2GW0900957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ed94cb4ca6372cab75e13a2581b74bbc3ed2e507ff5f88e3cce0c69bb8b51d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GB2GW0900982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330653b750d7c9e6d3b1fabc8217f75d22617f68521a8ded18bbd9e711090290. 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/GBKQU1927566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec59d770749ea3140a541800341f77ff982c98e67dbe09111de3cefacb46d41. 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/GBKQU1927567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed29c5f00ae64ac4852e85fedd9fdecda4e570cb0aba8f6a805bab2807f0892. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB2GW0900750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec28808fb5816f85f646a9b820da55eb793347322d66d54e69346838e3f0fd98. 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/GB2GW0900752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa47b7ea31a4cc076478b0d71f95224c1406973bb0a8100cffa8272340abc9b0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GB2GW0900751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a854b58b56e49c8d1197084b3f57a503c89f1b78b0dae2ca4d6eeb80e56d10. 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/GB2GW0900888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cb2201f585eb8f8b6a01df27971c75326ea24cc62f950f5fd9ec457cb94535. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GB2GW0900889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbddc2a55b41d9f3a48ca6bbd2161abb080d96d3552c2d7101c65cade5eebcb. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GB2GW0900891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa754cac010cd1838d7c9736a4f3510752f1b17051f47190413d150cd407781. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB2GW0900763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb751a3c0cba662ba8190496359b2c74ee06881b047fd909de6a0009f930a1630. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GB2GW0900862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbde836c986ae2d2268f126eccf4c8695c6bf64b4f72431665603d78bbfa0e9. 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/GB2GW0900682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee63c35a6b9caa2c37bce19baf2f2d95982e977d51c6b12a589e1c8ffe36e4e. 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/GB2GW0900670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61e02fad65f55775ad11342d4734bc06e15414e074842781913ecb197f0daa8. 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/GB2GW0900631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5af8b9e0a5262fa1427c6690e60068ca31fb5d853cefdd0c3be7d9dc863ec6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB2GW0900632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c60aaef60a143c6bb93bdc1bc354f1fee07b6a477d582ae093f4506d6f6db8c. 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/GB2GW0900421.
Dance Release - Msashi Roski 7 Min. Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ba15b28556067bd0b9a43e312d9ae2dc5f237dba83a8e9d371896047576d80. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:10:28Z), 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/GB2GW0900424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de7a8c93636ba543d6ba84265cab859a477e026ed31057052dd4159fdea70d3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB2GW0900609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa187aacc8f8200b5057bb5bdb4d549554132607a3663e2a38769b088c944dec2. 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/GB2GW0900611.
Make a Better Life (feat. Sonny Harrelson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8fca1c19738712b39117d184ddf781d696cb436378ade677b847a1c773c7a2. 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/GB2GW0900509.
Love of My Life - Atjazz Alternative Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09bf24e2c596c11f9b47786e6b9bc0ef6694d10acf94dc11adbc15a4e003492. 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/GB2GW0900124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68a25ce71e96cf1a1861a160c8e0a5675ed4e5dd2df6d9ebca59563a8584608. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GB2GW0900127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada13adee1571418102deda99d37d738dc6da0eddd9b3bfb9f85018af138c145. 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/GB2GW0900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a911865e12e5c4890402b16df936e09282bbe0bd3587fdcc8ecb4447fbb3a7. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GB2GW0900001.