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 0xa704abde46afd12c4711d778f94aeb1693dfe380417d066ce5a0cfdea5448f76. 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/d5732e36-29df-4e44-9b12-81fa53e70ac6.json and https://artists.proofprofile.net/proofs/artist/d5732e36-29df-4e44-9b12-81fa53e70ac6.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 0x3918ddee95023c0199012aff11214c980c35337577f672f6fe333e86d3aec705. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/FR9W11505772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9219b60334295d22547376404c99713b5e576dfab62677df0a13c3bcb5df94c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:55:09Z), 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/FR9W11706008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8450f5435ec8132aa79cd8c5525ede1056817a0c1ac085b2c3302edfb31c3d82. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR9W11920857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8450f5435ec8132aa79cd8c5525ede1056817a0c1ac085b2c3302edfb31c3d82. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FR9W11920857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c1c1e795505d8f5451f6ef84f10582662b51baf5fb4204b7dd220170b80978. 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/FR9W11920859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6616ed01936f884df8c838acbb54f304d1b9e3f00371fc7ebcd2e152417c82. 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/FR9W12005775.
Orchestre du vélo tout puissant (Nhyx Rework)
Orchestre du vélo tout puissant - Nhyx Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb540e41c68d0607a11f56484a7979781f85c14da250ad340028a70bec3c40b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:39:58Z), 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/FR9W12206027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d65d442e4940565e3eb9ef48fbdf1a800e6bc9b8d4f99dcc2316d58abaf52c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W12237579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54579f698f5958db09ae43889f698a38d8c1577c134eac5bb4aa00771b104a24. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FR9W12216608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d65d442e4940565e3eb9ef48fbdf1a800e6bc9b8d4f99dcc2316d58abaf52c. 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/FR9W12237579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc571784061f171406540d4e0332d9c9f3e57108b6ac580b82efa6ff2699ca718. 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/FR9W12356527.
Initiation à l'art de manger une pastèque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c81cf692c3e52b5ddd15d53b618fad6059511551f839db1428b53ad22c467e5. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:57:59Z), 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/FRR642401802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490ef1426a3dca7dc5c4910952b01edebc82fe5cc5b35a7e7e580c5e58c9673a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:16:40Z), 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/FR9W12465450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bb103901679930b4a06161ff40bce3e16ca56f096b762bb094de9a0e8b1f39. 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/FR9W12465451.
Apparition d'une balle de fusil en plein coeur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64f7093ecfd1261d74ca75476e05f5e5699f26e659a855fd7d05758bceb2f97. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/FR9W12465452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd31ae9bf8ad03f83eda4b9ec197916dc077a5bb4a56b537fe50c06a2411f4e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR9W12465453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f986acf7e9f1b4dfe11d9146f71da751d0a1d956ca2838a23079af7b9b0abe. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:39:19Z), 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/FR9W12465455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bb30e0c0fe50168423d0c34b375045c97062aa73c8b889edf0b6140c19fca0. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FR9W12465456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c81cf692c3e52b5ddd15d53b618fad6059511551f839db1428b53ad22c467e5. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:09:44Z), 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/FRR642401802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e267f80cd7c4e516667d7985c64037f393197a41f9dd2bbe33d174a7166d435. 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/FR9W12465458.