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 0x1d0fcaed785fe0aac9263bcfbf948b07ec5a175774eace65238486700a7ae561. 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/233df47d-a000-42d5-bcf0-97d61deec7b8.json and https://artists.proofprofile.net/proofs/artist/233df47d-a000-42d5-bcf0-97d61deec7b8.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 0xa9b5fa2f5b3ef6606932cb1729971b19901b700a1e097cefb8155f3d0ef36eba. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QZHN52253889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559103a08308f0d3a08461d16ea26a212a5c9de02f1999776af0b205031c25a2. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZHN92344381.
KLMKETA,KLMHONOS,KLMCXUTION-CERTIFIED BABYTRON FLIP (DJESS MIX)
Osama walk (JUS SCORE IT) [OSAMASON WALK]
Poison tree (Grouper) [seasonal depression][izaya]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a7cd588bf9e9c2e3c7e5fe1216feb6d429ed90f95f8496d78108fdc12db5c7. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZTAY2411002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bca566f84942f6704aa361f6a82f975ef9c5c93bbce6b8352f94a09352e423c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QZTBB2402048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf319a462d5644dd018645c1694517ce8ddef89d5f8d2af3849649a7fb1cf7608. 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/QZTBE2430132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d11a203f7c012d09082921d4dc1c8c40eb156f3fc2c86f1a1a2ce68bcbd917. 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/QZTBE2438561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fa75ad63d56ccfa0158aaac53d8b01d46d5e8fdfe659f8fba2984a3457af8f. 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/TCAIS2484638.
Cigarettes out the Window (Met My Match)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf382fc9f86fff5e5e30c96408c6d4490ec0f038b82ff6f4946e3a577ec359d3e. 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/QZAKB2431583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f996b08a47510a15257bed2b19aca17814c4e7026a9ada61ab8f712b77a2ef8. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZS7J2498455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c91e4a080d1651051c326740011bcf18806c18d59ca280d318f12f94ee3b4b4. 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/QZS7J2446717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8becab86f0fee934ab4bffdbc34f95d10f5d8a00a6badf1f1ecbe1079be1b4e. 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/QMFME2406590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09ddcb2c2fbffdb76099be3073b7cd21947048915c204dfad2b9065943a9e00. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QM4TX2557745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc9f4ebaa75abd933aba4c1348c4148b43d2476c6c08d6f426113d48b544ada. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QM4TX2557746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde85ef968085c2b3272f8f793219801fb2bbe6f964d814c26fd957b6b7bdf847. 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/QM4TX2557747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59c0dacb7d6acdd79f5d533f5d9adf5398a54a719393f04120d6a55b5586d6d. 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/QM4TX2557748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfef68dc46ef18f6c58e6529172de14e27bb444940bab24d4f17ab29d572a56e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QM4TX2557749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b439808f06e8e9a8367155a9eede4446c77c29258c4d0d713f183f733a1c16. 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/QM6P42500900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3357574805928f439fc91bfd5011b372d5a752007efdbe3cef0457ad89159e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QM6N22518169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee8186f2491eda4e57e92618f39145973166368afc562c80e06e0bfecf7045c. 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/QM6N22518171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c91c1c3fb06cd322fff86a609519fb387f251820d386bd4829ec80b53c4454. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QM6N22518172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a5e3003f30a6e4dd12aedbf1114869016065716a0cb62e5b8208bf0e544799. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QM6N22518173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f5f020d06ce9aa8365be1891e2109c28edab882b9d66fe2221d1e69d61197f. 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/QM6P42566421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb312a6058303b674d0270ee017739436310ebc6f758b3865a5fc3c9219728845. 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/QM6P42544269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f05d0606a54a55fe52aba77cb297fbd3645bc6bfa3a3b28e33211b1827cb37. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QM6P42544270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc025279ecc8824c3bee84031d8dae3246e9f4d38cbb28f8d9062af99f813c398. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM6P42544273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3787c9537e071fefcb145424849b88a84de1f17363b3324359d918ee01a1c4aa. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QM6P42544274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6a724b477bb94dbf9e9afb6641deb670b656558eb632685e6907ce6e40e008. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMDA62581771.