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 0x8bc31a2e1832b08a8fa14dc992561621a1e399e8634b38a43809e2ca48e24d6d. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b42d5005-dc8f-4a5f-aa87-86568023fc0b.json and https://artists.proofprofile.net/proofs/artist/b42d5005-dc8f-4a5f-aa87-86568023fc0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ivoir' Feeling (La référence du coupé-décalé)
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 0xbec39a2cabae2c463d6039fed08fd7fd658d9a34fd9239d55a26c51dbf9ee039. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRYAS0806137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9778a00641b1250a2d840b8a66ee81d039918209dc1cef15612fa8004ffde6ea. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRYAS0806141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad6e6399213e5c1ee81a17fadf454f4622854a936675daccd86a395faf07edb. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:23:53Z), 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/FRYAS0757070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f7950c9a268cb8d3e9efed8506f85bf80f369c0e137cb0ec459403e4c06b6e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRYAS0514550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b20c70594da0a8d6e63a44dc2522d18581206a84d06e4c9592807aaaed0dd5. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRYAS0806144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a032d04c992af8d93e0b6485922d3c63c5ee44037a0b98e5ef9e0aa30c69239. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FRYAS1000953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2236b3cc495eb63c2b8e981f2f454a5acee6a617342216fa04c5ffd3dd30630c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:00:10Z), 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/FRYAS1000956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0b779f33bd4f119b38c4798593d3bfc3356804436a668bbce1c7485d1f3292. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/FR4HD1800071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6104761aa90586ce5dfcbb82449682652c1d7f19df0960a781ab0d7cd4edbad1. 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/FR9W12013463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e5747c4b09d33db5d1a1becb76cc77e59a07ebcecf1c92337b1b97237b70e8. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/FR9W12012684.
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
Best Of Obouo Music - Spécial Ivoir'Feeling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7d1ef64bafd995b4cfff5f87acc6fcc6614c709729bc42fc80c100940295a3. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:07:28Z), 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/FR7P82473300.