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 0x50b3de7e24cfc0013c903336a5180ed2329fd48b1b003a848784b3dd1db6c5ed. 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/9f54b488-d723-4a97-91e4-b237c07e300b.json and https://artists.proofprofile.net/proofs/artist/9f54b488-d723-4a97-91e4-b237c07e300b.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 0xd03313030dcdacfd9559ab89a3dada21b521c87b89238fe37c8c380132bc7252. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FR59R1878093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c90bf5a690eb39c929372a4b8aef0cc7c18e7aefbf41ee5d49064d3a94d109. 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/FR10S1904799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdece5f9db3098e3221b83935538eebae766c89eab4038d630336879d44b2f7. 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/FR26V2040052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91a0836d0472b94e8c67a7bdabdb964a3ed7e7e963bf83d2b209bf73ad68def. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/FR9W12136357.
Enjoy ( Good morning ) [La Cabine D'essayage]
MIKONSAKÈNOUKAFÈSA / LARI RÉYÈL (La Cabine D'Essayage Drill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743b1a607e306feb6a0bb53b4c7527bdfe9d986943103d501e64a06c7d5c93a0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR9W12360790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daec2d11fa204df1899e590f9c3100ebcf74c00d6d311d3575bec7eabf2e519. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR8W02300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e2b704de7d21d0cd924720f64a8aad36ab96d5b7b535e22ff9416a8f028049. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9W12404949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3659ce583429946a43ab99b14da3bbe715c467b849bb2c1d2b52790423b8d0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR9W12360793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812242f437f19b6d1fcede5dbe6b14745192bd20ee360510f77257a9474ac956. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR9W12360792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a4db9ba0b08d2314c26bc6908e7cf8df46b3afea13eac58c5cd31a72921a4. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/FR9W12429459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf870149fb5017444de54637ef409cb5d38ee2df9cc818a8254b9d543a328aa. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/FR8W02300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481db5ed273e5fe26cdfa169ce37c12702f493dc9e84fe88b3fe2ccf249ff234. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR9W12429457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6569fabde13232a9c6eeae2f37fc8290b377a548058b795bd9511f10acb9ea0. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/FR9W12511531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fce1843105e0523f17ecad2a73e9b3683ba2e8ae466434de9fff573dad5bf7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR1A92503063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c12ff4235a2568c5217e20734d01e0000839b7ee90e2958cf29d4322c7a54. 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/GBCFB0101310.
Summer Of Carnivals, Vol. 1 (Presented by Int'l Stephen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50540f71c611b6aec2fb6ddc08bc0140896cb6091ead9559f15306e360c5f1a2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR9W12306222.