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 0x04b64ded873c43b049fe288e2158fc8041c8a732338d26b8716ff86b51ee759c. 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/18214ef5-7438-4036-8582-d69dd2b7f54a.json and https://artists.proofprofile.net/proofs/artist/18214ef5-7438-4036-8582-d69dd2b7f54a.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 0xc7f9515b201be6061072894dd8bae8daefc6cb993a77fbb286f351436e40adb8. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/FR96X2161518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecf7b31e1a1fd17c5994681c9198b8432b36db8d19fdeafd6f9f38cfe198cde. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/FR96X2161520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce90e82b6dd3c685eab5b5ca15e07378c0c8d20be2d7a621e0d2d9cc3b0e842b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FR33T0512201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1d06450db9f5138c2cf38cb1f9ea725425946d54eb241b7773b454682a0f39. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR33T0512202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84b6f704c65d142cdebc6355a57f27de5db4206f2a02965ba3af58a776e4c3b. 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/FR33T0512203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742c13bdebde9d8f5fb26301f0dece8a3da4f41698f8e30014bafab02821041f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR33T0512205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88627a9a5404638eb501b5852f8c4894744fbf71735659c43eecacc346c179a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:42Z), 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/FR33T0512209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3d0c198cb1ecfcf1ea255cdd3bff9ab9f016b78d322ffc652071f6205a1700. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR33T0512211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cea93cbf5e8d20d4b62a765abf93d94f63bda5100e9d04a7321e67118523362. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR33T0818102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc035c119cf1fd0f146f0006d6b4c481985be08d4ba63769df084ba06afe8d319. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR33T0818104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc015164ca3f54210347018bca755573d8a0adc11511d4418a4cfd2a9b86f0ca. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR33T0818105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1994c563d01a96bef4ed2d4a1c49597df76703d0fad6fef6fd4c0d604f81565. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR33T0818109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb1c1e721f9db9e9150151da1b737489fb7f6c29b9d19f47ad27c84a852ed9e. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FR9W11704582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423bf4a4adcc19f0a61fa49ec3db5e573d4d107fb3b7f53c579508ae61fdacec. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:10Z), 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/FR9W11704585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d5ec8a8c29f3650a9d52d1f7dbfabea74f5af9991a85e8cc653fb27fbd8c40. 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/FR9W11704580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c79e40df3c82767c3b66591fcd5dc18a4b6dba495107407ee96d430486ede6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:27:41Z), 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/ATN262207302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f8b50daeb5a54e5a2db676cc74d1aabbb1b16c862cc8acbf84bcc989803828. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ATN262207307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d5a238a9553d1ce287b0c3731bf1a261220d944c76d9f01836afc46411b43a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ATN262207310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ac53fece25eedcfd5b2407931900d47bf22b04da30c0772d99531bb4e86cef. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR7Z82400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ad00cfafcd39764f2e27d3b49725b6566ebae9547541593613891960def45b. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR7Z82400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed90c631799dd8e3048ed690a3090338616c5ba9f4991de1b218a574fe344fa. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR7Z82400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ac53fece25eedcfd5b2407931900d47bf22b04da30c0772d99531bb4e86cef. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR7Z82400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8be6046376bcf4d80f9bd47b1b5b3b283ea2bbba91d17209f0fecaeda9bfe51. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FR7Z82400032.
Du (très) gros son (feat. Vincent Peignart-Mancini)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5159c3168a9381219ad67612d12694165d81a2fc565a9dd0f69ee1633c555b2. 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/FRZ051800541.