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 0x4f2b367d5eb19451a03a4363540167bc8e06de6a20d8e8eace3c54428d19d7e6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9d7fd01-ec0f-439f-b7d5-fc575fe2a4c9.json and https://artists.proofprofile.net/proofs/artist/c9d7fd01-ec0f-439f-b7d5-fc575fe2a4c9.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 0x173911c4802a8b21e9a6ddef7c2a1e8178ed094f7ff1ebe943059b6ba65167cf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/MXF367421693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65302da07e0a61e8c1fb505cf6f60384b29e168a1540c2efe2919f646dc43562. 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/MXF367421687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b98369b24d9d16b7feaea59d18bf195a9be22daf93e48ec602f9c1783ec9c4. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMDA71303224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fb91aaaf92bd87076c2f3e907630e9db7116b59123246fc65d50c6f20525b4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMDA71303230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc14d11cc23d6366de3330e9fb55dbee33a4f43203f3c5c9ba7d4b2e881c9c2d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QMDA71303223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa61f4e4116a31cc3ede1ff93a73ba35b078f9fc897c54f2ad235e48a89379ca. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:45:50Z), 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/QMDA71303238.
Rock - Lo Mejor De Los Locos Del Ritmo - Pioneros Del Rock En México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c248baa31ace2980c79365bb72b9bb8224e1e4ee394df6f8269797c8f3ff658. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/MXF550602724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1be153d9d3d583eaa2930ca41ac14582725460a7db0fd40eeec9a20c42bfaf. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/MXF550602726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888caf62776020381b19857b9aedbf3648836ad57f959ed959104facf95a11ad. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/MXF550602727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb4af87cf1e7c320641280c001f1d3ec2a7630e63a2de7d6a13bfd9341a22c4. 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/MXF550602728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8bcbadbc481fba67e8b435f3edeb3df15525db19d0cae03b0494d8d2309433. 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/MXF550602729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15556f172173512355df7c3e995770556a86d226b0f3b69a445aa8fa5c469c5. 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/MXF550602732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca403ca40001b11ad5620580d104e42afb2fc786cb4cc7f5ef229e325e3a652. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/MXF550602735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9f8bf2ccc80ffb6268820ad27940616dcd1ce20c29ca562f68d9df11805c9f. 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/MXF550602737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5af6cfafec57dce64fe3c42c833985d19a923a7ce820236775b92366690d44d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ARHXW2203487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830057a8de5350340148e64d250eb6ef48f4095ba14f2554a80e66bc9683fe05. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/ARHXW2203490.
Nena, No Me Importa (Baby, I Don't Care)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281d49c9e63b670f58eeb0f93226e2211f5222096ec9efa105282130c0e17adb. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QMFMG1485243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec05f22f29b4f77a102eb525bee34fbe52d00088568c3b69b019f60e0a21293. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:17:12Z), 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/MXF331111435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd5919b4b371fededfe15f296085f194c31205fec7d7914f92b550f6a72ae02. 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/MXF331111437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4063cdfa557dd73e1d694f79a7f2fed7d3158550f3ff0cb01b88b0d03da1501. 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/QM4TW1586604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a813d4363fe84f32f15d220fb0eff683577cd011684355fe711814c564b1cc4. 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/QM4TW1586925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdf54b180e9e465819edae55a80b645683cab33ce52fc71eb97d89083246ee8. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QM4TW1586926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60cb743663305e1ee91b5b7d6ad725aa92e590db43a0fbe19c27a14abbec148. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:30:28Z), 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/QM4TW1586498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e842c030a244fcc03e13ec899f87d418f88fabb81d36774ec8be4b160a394b5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM6P42005800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9110f1aff3e9e151748a4443a086f04919ef1ebc00537974774c70af24aef55f. 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/QM4TW1571405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97db1104ce683fc394f0fbe33d290ee54e955c16bb1cd38d1e85c2003610daa. 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/QM4TW1571428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6c1c5a108ab39e4be3db90aa1665752d9aa0ac8e5e9cef31f28e8f07eb079e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TW1571434.
Mejor De Los Nuggetz: Garage & Psyche From Latin America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aaa42d45b792ef8f644db68b5e58743790b802bb9e4f0d393e772e1e53ddf8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USY252331444.
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