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 0xa5e713eeafa624e5cb78578d10f5f64caf3d43fc852bbf5e8f718c06443823b8. 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/642d7977-275e-4b4f-bc65-8638d8448f85.json and https://artists.proofprofile.net/proofs/artist/642d7977-275e-4b4f-bc65-8638d8448f85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un Año por los Dos (En Vivo Desde Caribbean Dream Studio)
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 0x62343c717a08d96806a18c72948bd36f66af3999f1e2d567998945ce859a8ed1. 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/SEYOK2046945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32873df21cb7a55212f2113a404901328d1d35f69e382789efcec51161344cd. 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/SEYOK2046946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1a35c92105e5c8ff7001a5aa956802cf834d3fa65b6db8e289b63f8b04ddb3. 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/SEYOK2046947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed246ad38038c782cc22ce4ddf4775f9811fdcec14bd7ab52c1e67cdab09805. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEYOK2046948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f15c71146f002cf21dc685830f4662e0fb25164ba5ebb829c37894a0e9e0efc. 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/SEYOK2046949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48b82c4e95686d6a628bd0681db5c37693b111c9c6e5ca81cad51ec8c111f6d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEYOK2046950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e094e8265cdf6c8af4a66b7f8c5b686458a64db6534a42c2df19dbc5f974e5. 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/SEYOK2046951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff3d619d4af69c23a162a6bd1319a76320812f791e51747daa41e6534989125. 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/SEYOK2046953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82d6bc7c2c8074a16d2c2e1482340b921e274a7cfcb7def707884540ea9f06d. 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/SEYOK2046954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c447264cbac4628c2d150ed881616f6c16be5a41ddfd35ab53b3319219a9ac0. 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/SEYOK2046955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82107233c9c17bc59aef01a294a4a5115c80ed6964ee8737d2c0b5a63f08e840. 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/SEYOK2046952.
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 0xf7896bf1afcdd8e354cdcb9f1a61ed27e8c28ab92896dfca41ceb468b11c95d0. 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/SEYOK1925442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513a08c2245e50f33e46804e59eb6657e0f31b99574c7622bb777f2b360b8980. 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/SEYOK1925443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d1a435a2169102189168d7a640692a094d2a436da1e006ac6bb9978b1f445b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEYOK1869523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080aeae9f9cf3ba79bbd82c5eb591efe85808799ac3e3696b29cb801faa7242e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEYOK1869520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509afb558df184746aa75c9359ba15d005249380999d7798c542645f5ffbf576. 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/SEYOK1869522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f0cc13f48c5186efe0c8ddca813fab9c6702ae5eb83c63c623202b5342d7ac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEYOK1925444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d20de57013e2f4344bf264de09303d5271e4ecefcc3cd02342917c5a5993564. 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/SEYOK1925445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab220cbd837a6e4f77a6f21ae47d1c674154c31a1ca4cfda96200569e8bde9fa. 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/SEYOK2411635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1051ea854dbd1686eaa0b6b30decd5c349780e3b52ffa5e07960b59fb93bea9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEYOK2330871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb8291a556361be074aa0ce5b8159cbfd422cab372ae78e06b61d5a487f53a7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZQAY2317608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5830cc4f2c1042925ef3176517005b1a30ac488cc2846197528cee802c3986c5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZQAY2335698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e6f4781c358312c60c8d09d22672262868b6c5d3022020f07a4366ea698402. 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/QZ5FN2349484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0cb314ea7d2f5079d10a287891a532c98f6b74a71f3ba8e429e0d1d7cfe4b8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ5FN2349396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773ad5825c98bc538039812918974acf0e9e9634a2ff8e28ce48c8f9b5891a43. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USLZJ2394114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28586795520d736b95470c98752ad67facc24e0dc7a23f5b4c0e6300cd476e79. 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/QZQAY2395677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a31f69f0ccedbbfd91104727c6da769b6d0b2fef5e2c87410c6d623f5e8ad1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZQAY2335626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf8f98a2f40fec4818b566f56da3a3370d60631a3cb0634e8597488e8e255e0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZQAY2399578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbe3e7f1a75ea2084af4310f8fbbfc64aa9ac7c5433f54ba80e2efb43755f39. 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/QZZ762421201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e07aaf60f402ce6fcb916f88a3329130347df3c91e20dfa240421a6200d29d3. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZZ762421202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f519fd40f88e0606dac932aaeb2a428ff1d63a16093ba6677c11757ea2a2ff. 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/QZZ762421203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc78b4c12697c3199ce5705f19f82b0dcac873b9f7ed7b120202d0d4b26c3c8. 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/QZZ762421204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d55cebfa95f257957e21f7c4d5611ac1558010822c5c4324837b59ed473d64. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZZ762421205.