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 0x14a7c29879d6f46f22b7872c9e124fcb3ee475d0d788c8bda43027234041e3aa. 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/15f32065-657d-46c9-a8d1-91dbdd5aa42f.json and https://artists.proofprofile.net/proofs/artist/15f32065-657d-46c9-a8d1-91dbdd5aa42f.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 0xd6ed5c50420a89c367f474bd7519d81c04baa7bf6d1b1288db1a348fffa3a23a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/CH6540844552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c5e52baa9ef9f5767487bb4223aad50ea960b46b7fc26d9c1e92390f6f0eb6. 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/CH6540844553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fab5dc16664cf51fcc38da4a4cf3fea32df121394f1cd78f63bd7e20e190a2. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/CH6540806523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2327816b58d1bd955798bab41d81c9dde44f5608a6f05702800710532f801b71. 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/CH6540806524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb439dc948f2ba79f0dfbda26590896f5203aec9b75248b987b205af4125507. 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/CH6540806525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fe15daf98766d9e7e796d27f7236ac4d8b277d2ad0a380ec6e0144f0a50e9b. 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/CH6540806531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2a1d674a0f9e2349aed0bef069acf76cced660b0c474bb261455eddb3d6896. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/CH6540809367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603e84afe3ec8627ece43f7bc251b91f966159516bbb539a6f8567cf19194de0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6540809379.
Shock & Amaze (with DJ Premier) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d4cd797e97ffd501737e2a867112052043b5452a955c3a74527e631a98d4c2. 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/CH6540823525.
Keep On Moving (feat. Rakaa Iriscience & Evidence) [Original Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5cc9bf772ef09e9c0b78495cd1fa922c18893b196a8743cec87f1b73e25d11. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CH6541906540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acbd6e4b6983beac1fb1f3ab93be1a465319dc0469337654533b8f273ff6ea6. 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/CH6541906542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56083a8ed326f81b45828df1d026981b86e674a2064a13bddca5f85b9e1ba70a. 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/CH6542131989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c24034f4f7f6cc9703feb1c326fe9116196305a6bbaeb73e99297fa7a8cec2. 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/CH6542210968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c345043ff693b762aa42f640163350d4e0b2dacb9a6e6c9e446748ba6fa9cf. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/CH6542149497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaa5d0a1a395fe07833731e9d8f6e36193420c059721a098325312931f1b798. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/CH6542221503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57925154aae8f801b08cb563ca6f4c1d6acedf8163cc2410f78b6d3cab77ebdb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CH6542221504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dccd9e3fe11d102ba2a765f6228b4415bfa2e3f44b8bff13901c3d0a5f38efc. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/QM6N22294625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c6db66835275d41c09692e92dbd89ea42226765c315c5cac37b94fd0e409f4. 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/USA2P1202772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c8fe1b440809034194ba281f52a5edbf19b900167f89b76b593719ff890257. 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/QZFZ62414000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba581cd21a0e9889daed0be3ca018a99a8be42d8d9cae567cb3aed4dbd32bbea. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SE6QE2426122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c61f97a865131131cad8aaa874f0b373be6e461508cca649df3069e4d9e6c63. 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/GBRGV2321061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5459107ab647f8360861f6f04266f437a650fd865dc95bde3b454262ce0eebc0. 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/SEVGT1003419.