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 0x4e60fdaa2b9efee6bb435aea9e960910db3c7cb9d73b211efe4283528fb8fb46. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2976cb1d-3896-4b5e-bbc5-cd36c6156323.json and https://artists.proofprofile.net/proofs/artist/2976cb1d-3896-4b5e-bbc5-cd36c6156323.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 0x74fed54f0fd94b5aef5cda97a5d4687afe5507831dd96634def8f52bca7c26ce. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR1A91501379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d7842bb42cd68a4a50b70abca2fad89cc3e013e8d52dced0f46cf3affb47f1. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/FR1A91501575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce64ad16f5cbae209461a9e295f5d81a511a4ec07a9f4f8bc94d4223f3fd93d5. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FR1A91600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2877500a593decd9b1550a84b5b6032ba74458bcfc1fb6c948ab1e19c7228077. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR1A91600520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a48ca0d6ca29c89d1f506faf700d3660d3466542502d3ca2d3006f2d7d5402. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:49:42Z), 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/FR1A91601023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1eb36a804f93f4df062300159b3bfea08ddae82287984b021bac910caaf3893. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:32:32Z), 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/FR9W11707123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1eacacf4b47f2ff9f2ae6d10e2ae05fdbb5a0918b0fbee3bd2671bc66bd098. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR1A91900436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529e95e313e236f8891b29b6011bb7b6909a9fdab588f8a43375d74fab4b3395. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRA042200441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe466d3e0f9159b8e08fbb72d89c3e8bf3e4669a9efb21f4be669b553b0e2697c. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/FREO92400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7284f015132931938eec1b8507d0209e08feba703315aef9a63296217938864c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FREO92400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ad16ed9b54b1808637a4f62bc2282479083458123010e48497a973a3965ee. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9IX2302240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5cbead3ffc5878d75f8bd70045fb3744d81fd58f8b8f89ea78b21b093d0786. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR0U92000137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee99d8ec3634bdbebbe520f50383572c4056f8b2ddacf7384499b619d2f82b8b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR9W12328193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf590b18418cccfbb190bb2c971585870bcc5d8969126313ae5385aca5df248e8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEQ021804919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be474c7e86b388413343a133c7963f64fcefcb7cc86dd049b74d7d05ac727f5. 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/FR9W11515018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f2c320343a8612ea4bb0f14fd685d236cb1b762450332aa5f0d88463380da1. 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/FR9W11605921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33698443208974461253658648a0d689997800bd7b8cbb7ad91bbd9998c11b8f. 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/FR10S2436050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f76f08ea877ad93f1b2ef19307e214c5fd80694ac5a3d4b473b77d773fa51. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA082382907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33698443208974461253658648a0d689997800bd7b8cbb7ad91bbd9998c11b8f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR10S2436050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f76f08ea877ad93f1b2ef19307e214c5fd80694ac5a3d4b473b77d773fa51. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA082382907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040a595692abdc399aa34ea42fb7e177137a5b15f68b3ad40afe3853e7b3e5fa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRU492000010.
La vie du binks (feat. Hornet La Frappe, Leto, Sadek, Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdeb6cecf5a32c5d3122473924361e820d7ab87b19099ba3b5ca58eb652645e9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRZ042001206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c249ac4cbb0fad7dcfaf666e263ccfe971a9c1f0198a42596c6d6eedaf2011b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR8Y72300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949730f584c9a83472f22f8c924b0cad8318a4d7f39f420981c566aa491a32f5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITUM71600879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6b581370fa343b8983045c9e01b1c2ba06d8c19a277cf598dfd2ced8c1616f. 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/DEL211801513.
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