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 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 0xe6b994e667a3524806bbd4762eff1d152dfcebe362e22517f0ff1f3b9f2de06c. 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/9e4cfdbc-8efc-47ce-b09d-ed1ba9dc6575.json and https://artists.proofprofile.net/proofs/artist/9e4cfdbc-8efc-47ce-b09d-ed1ba9dc6575.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 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 0x70c376ba838267d1a000ba3212a98a052a3cb219257cc9855923432d2b1dac8b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBLPF0600444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f9ef970613351dbd8d5c50d2df530f3533d73935845dc74b7fe09ace74e563. 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/GBLPF0600438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6210c733e4eef06d4f12628f77ae5a91f725c6b91c0ff37068c6d366237186ec. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/GBLPF0600461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb482e1e998af0f380518c6c4269b9e1c94181baf4854b17fbe27479376d22b9b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBLPF0600464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb2df52373613ccf1de99c8ea76a30b3a20184fcc13ab6cda9d63aa2559aa9d. 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/GBLPF0600466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947d7d6d3b482411a11da737e6985a904f32694c0fefb9845e777253dd807560. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/GBLPF0600468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448243eb216628c8abf3bf7f97ad81005d03e1e69cad0a98caefb508b1952f29. Chain 2 (Bitcoin): anchored in block 957655 (2026-07-12T04:42:44Z), 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/GBLPF0600470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fea44d6d4b19ed5e2bf8ee090afc16803240b6cc300ac01720e0a6e126afac. 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/GBLPF0600473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68013622e7885dae91d4e80fe346d88ffdebb12a8549d21360aea36576ae21e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBLPF0600479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03bedae60bc0f5ec014b18e695afb18e70d1d1e6ac1d8b8d1ff2b1a0e7d3086. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBLPF0600482.
La Canción del Pirata P.II (El Yugo del Esclavo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde93ada175224fa1a45f5dc12a430517bfda340a2c93197898b35c84ac8c40b8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/GBLPF0600483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2930bc7d8e61d443b8a96a6bf2bee77444e3bc68f002782dd9f5a3410b42abf9. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBLPF0600486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb767336234d89867fa50bbf1aac0a9d9acedd62ea70a28195a1335a27ef76e. 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/GBLPF0600488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f31f4b55495b9c0df7c69b5981f92e5552a798a33283b1e39e42c28739e9d86. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBLPF0600490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8e1385c15b1b6988fdb1fafc84618f24ea762ef114a635d75a68ef0be7d5b0. 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/GBLPF0600453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7d5f6d74dd932cecebfe6bf4421970864276bc3bcb38bdb2ea7ed61a1e94d2. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/GBLPF0600456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9517a8221834502b06bafc6cb5a8dec1d69bbe66e2404434ecef7a0a1979217e. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/GBLPF0600613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17901888adee316a31bfc31d49cd18b2aebbf9c11f79f8bdcd89fec480f552c7. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GBLPF0600732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc051fca6df70781782d3c081cf73e112075a75cddef9f3ca733761b015160da. 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/GBLPF0600931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c48b658627a631a11dd299abd98c4a704399f46fc66e0386606545598a6c3ee. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/GBLPF0601833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe56e924c8387b57205c95d22ae1f5e1e1f034651586bccc31506bb71f559981. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBLPF0602841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724e3d05dfbc1e375bfdb13764c03377b921167c97235b8f0c0e953254c71eca. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBLPF0603252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e4abafcc2967002264dd3521bb4fa2bb6f01ee1d57682587803fcf4a18585a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBLPF0603514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79526d9bdef30ecf7420b7fe5f175766abf3aceda9399816d5b8709015606830. 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/GBLPF0604874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff111dc66b2d1b87514a82a6a66af9b44b31f338a00f7ae8d50c1e51f5b7044. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/GBLPF0621348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360b8c33ccb3fe706bcf3baf6c9e9e6aaf70760b226280c263c49ee927ee5ab9. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/GBLPF0217953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf241429ec7f694a5e8bb6d1636d1e1e85b86eef8c4e00d0432dcb4375d6e9817. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBLPF0226006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93741178b7009c07bfae2bf5edebadc05a496bedf0e18de5479522665575cf75. 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/GBLPF0226960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c2665df2e34f2261f0a6aface104e1cae0b37005f2c0f9874361219f204f44. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/GBLPF0237004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abad6646b0f6e4bcbf91320cf91c2e468de254de1043c7e69abbbbc6e02e180. 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/GBLPF0295021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda574dea14f6698ab84b44c21c7c34d3ba2de6e12b6c30c3f77a8754552472bd. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/GBLPF0296426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e03948935b2b7b2a5908b01acdd32551f1039f42bfc8f1463409a90f634737. 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/GBLPF6667163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a3b0d6a9a5c5a73643d254ca0acd8afe74cb1f288b1e0f3144e0cba45edc13. 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/GBLPF6669441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c956fe758c9150bdd9b858a9358647395ee34850e49214971ce8f66db5d25e6. 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/GBLPF6676698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad11764dec5ea78c66c007b1fc5a82c0afcb3c5dac753beb57eaaf0243885e5. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBLPF6687807.
Jenny of Oldstones (From the Film "Games of Thrones")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b69bd9626b19a24fda9e4b880d852bc036f837e1673b65af65d6e5c08ecd1bd. 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/GBLPF6703522.