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 0x7e7584a6cee9769c62e8aebbc99dc8d1d1d583a6dc519a217f67a3c4b472963f. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/214381cd-bffb-41fc-ac92-62cba5254ae5.json and https://artists.proofprofile.net/proofs/artist/214381cd-bffb-41fc-ac92-62cba5254ae5.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 0x56b6d476ee3c263b76d46f948230bbb2246d496f3f209d4f5280f2a6876ecc7e. 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/MYAO11350141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba498cb599460df0b8bab91984f0dc9f90f97dc4a2964b342cb16dc99e850ea. 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/MYAO11350142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9823cc1988db060b647238c3497959f501aad2f35cb8c23dc40bfd59fcf78457. 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/MYAO11350143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9fa33632d049ccc947ed74f5136d2c1ff7d9c4cedd0dade4613600e5f4d967. 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/MYAO11350145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5e2c5c08025174edd1d13f57599681af0602ed7bd27c8fe8ede915cc756996. 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/MYAO11350147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdbbab479ba99743b32780b40aed24d744517e9ed65fbc263cb08af938b2df2. 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/MYAO11350148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6153e8e01e140373fa5d96ace84e78047487d4976f9fc3c77727c34518a3ac5. 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/MYAO11350152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7053d0356b7d10e07642055e2eebc8de7d8a23272743f175af16a35e622daf09. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/MYAO11350144.
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 0x6e6714a50f2c659be5c34ab9ba8656a980f2f7d186ad40c33f4fed352aa82c50. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/MYAO11350146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f99e206dd8d15a5d650d7dc2010d6b7e344f5d425eadd6bef64519dcdd8dd2f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/MYAO11350149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe07aaf19810fb05d1f9446b18867a870b2edcbdcfe0a1ffc03d29ab0070fdd5. 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/MYAO11350150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c31d5523af3bc5398d7c5e29c009b87b38628fde7e2b280537ef7e10a3a68e3. 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/MYAO10800807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c62723dacb4923fb9b839443629231daea21dee3c1252538437f148bcdd46e. 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/MYAO10950192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3037cf5d558006cea9cf0dd60687707664c69e9495acbb4e5b43359764bc1695. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/MYAO10800813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c1ec5404f61c5eb42a9e16e48b6d7c8c9d2cc5cba10a81f8e411c69d4bb742. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MYAO10950174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7062a17684ca94a97f1a16eaea3fc57d9a0bae9b168cc11dccdebc20b9c087a. 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/MYAO10950177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0904c8a12921199a2c794680eab26bbb22cc5f68b75d8dceb408d9daf6814c39. 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/MYAO10950180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39aa44aeeba70bf83f4682d6c99d61309798eddebf12e7d5cf50c793bc4d9153. 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/MYAO10950183.