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 0xd48b89796928897682ce4e9df4b36b1a2e1ad04bf0da135b2310715e7dd31459. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51245c32-5d57-444f-a166-530fdbb34a44.json and https://artists.proofprofile.net/proofs/artist/51245c32-5d57-444f-a166-530fdbb34a44.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 0x63f2e4c939698d1d836d075b33da07c9f6a2760e4de78cceb23faaeaa1f9e7aa. 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/US83Z2491720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15decbf079511e1ec9a2d141fcedbce27c91741cdbdf4a32cbb11b5b7c4dba3f. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/FRX452404647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa698207033346fee08f5f8b027a07ac2a0feb68dbf8572a87d0dec4e7a2bde74. 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/GX8LD2412396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001e1fa9488fa34f7fe7aae23a6616df61cd675aac762265308e7c6965a30007. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBKQU2412813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a87a17ac3d2bf48f20df1a31754f5249aa9293a7bc760a6ccef7a91824e3785. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBKQU2412814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50318740e62afafed76d95e337cbe9b59219556e67a94dc942f455ae8179b98a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBKQU2412815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bedb8f856309ded2e2050843a6bfe3aabd15e91d855cc814040a54a33dff4c. 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/NLHR21600467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde86a7825bd1892c9981d07121f774b91ad76d819e8d57412979e357e0d7900a. 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/DGA0H2309952.
Connection (Kenan Savrun Night Radio Edit)
Connection (Kenan Savrun Day Radio Edit)
Catoptric (Gaspar Aguilera & Manu Pavez Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9b2809b800d5cfca08df4de298b3b28ff5804f459726bc574010daac54148a. 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/US83Z2210760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72334ba8f08c45efe2902ceb9a8bb1b8289a27d8ba2ed7783c99027a8ead1901. 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/US83Z2137130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9042ba90a292b07bdba341fd33c0cef369f5f90faf81e702478421e39fcf4b24. 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/US83Z2129917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8f4b33d1dd51de7176b018745277879265d7dba45c4972243cfa4097d6d7ed. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US83Z2042887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f6fbdcb5ec547a290402f46612e5cc3faa7b7951aaf600d55814d2c4fbda16. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US83Z2025885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a581d1ddcd94428c9f9036cb98b0a6874c0573dc90d50ca19ac90ecc52789a. 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/US83Z2025888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe819c92048d43a31e4b96466a28704a5d1bf4cad4f91f6c849ed66d2945a9966. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/US83Z2025886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e75bf288d4349615cafaa6c5c53bcc33d3c52b00a35cf824e218143d3c9ca4e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US83Z2025887.