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 0x370f5f18080f1fe28e4e93e0f86a0a0c1b9806fa5101dab3295ee47c87ba6e9e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90e609e3-9b9b-4908-9a0d-b8c27508b36d.json and https://artists.proofprofile.net/proofs/artist/90e609e3-9b9b-4908-9a0d-b8c27508b36d.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 0x15a0885f9708f18c3688ac458414901ec0dd09a8a7f20940bf97a002498a81ca. 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/CH6542310639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c433f468cd6cadf617ec8af24fd6d097db568cf45ec76c4b970bad3617de99. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH6542278272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4f7474b19f292d0a18351b179861ef2014ac899cc57a6ab2bb31a6a110ce52. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH6542297207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61141af850947395b79362606aa93022603812ab84e9aecc5a1d071bae47fec. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:28:27Z), 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/CH6542310647.
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 0x8dee3503b82b1f30f0ea3a451bc2cea2d03f7cfc51a2ae0a938bb610db2e6c3b. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/CH6542310650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd366fd1843b0c56a94af6c8dfd4f13f966e769c9e12d6f471ed14164f756968. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/CH6542310638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c8b944216a85730109fcc6fabcc9439f7630f5d52727fe44cd92d1be7df27. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CH6542310640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235c9b71b4b46e9173efd881be6ac3be25c912e55227ef9a102d6d3d67f4cfd5. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CH6542310643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf990a5143c4ce6e95d062c9e04e1684d7461deb2487e887401b4a63d45c9324c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CH6542310644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cd2794fd6f8e47d3de92edc1d5207396ce29f9a93f36b31e67bd96aa7891de. 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/CH6542310646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae75e89643443edc11845a79f29cd234d8ba954ec73bf5a1b55aaf77315a2bf. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CH6542310649.
Misère Record - Recidive (Instrumentals)
Le rap indé ouvre sa gueule (Instrumentals)
Klassik Fucking Shit, Vol. 2 (Instrumentals)
Misère Record - Sale Ganache (Instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbda31c5c14a1797c4c0e4e4ce0e371512738f7e06abcf107a31e662f5ed046d. 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/CH6542187588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe37d3379485834961daa667a73598e0eda0277c6ca1bab6c3403c12e51ae601. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/CH6542187595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bf2eaa4069ac8116407ac5364669d3023e57f4e3eb765cbba19f2255183d37. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6542326958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8783981b4ae61dce8e0f4f545158e2048e00f4756d3b485259d8a16a409ca20f. 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/CH6542326954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbff1f68cfb7849d1d25516b54b0f0036b73bd0263f13b0d94f1592f5a58233a. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/CH6542326953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ace90108095a1b670895cae239fa3fd541d55fc6e96146741d21532b58ea31. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CH6542326955.