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 0x20a1a3b68010fbfbe28a5859d68df85d35974862c5ce7f66963b5ef47bf08a5f. 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/b746b533-ecbc-4e2a-905f-618ba4e5221f.json and https://artists.proofprofile.net/proofs/artist/b746b533-ecbc-4e2a-905f-618ba4e5221f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
J'aimerais t'oublier, d'un côté j'aimerais t'avoir..
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 0x45c2cc421c56652288b1f490ffa9966467904ba1d5c2415035a429fca18fd550. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN82575086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7525d9bf16387aecca1b8e9ca2ae8bf2677db5a15a01a582f51e6226af212f5. 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/QZHN82575088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a25b4f38db76f001b802f0bd8500766f53da5139159236361b8aab2d074754. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZHN92528171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f56a24009e82da23708fd7ec03e38d6e59afd2ce43dcb0488ed1c5a6d8e28c0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHNB2569519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2381003de8cf1b9c2d6c2440724a86042055297a1c581fc5ae58626506bd8e7. 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/QZHNB2569520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d779c57bb805e44e5acea5fdf76c3212fef6605544eb5af2f26cc92e7cbe295. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZHNB2569522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144c5179713304aa336332262cf826cd449acfb5036b70cfd8b08175fa64cedd. 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/QZHNB2569523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8026675aa18199bab767744d5e162c25da9a36c76c9aeb30dc7f098e0a9f5861. 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/QZHNB2569524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe544baa7e53b822682ca125de5a578f08c993627691cc068a7033c46a5b4e54c. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZHNB2569525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9983f2c71ed119acf7128859888bab5d9fc84835f06266ad946386b54e2028. 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/QZK6Q2506409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1459af676109b7ae01fa22390c74ad72acad67600bf0883ab491428b25f195. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZK6N2505678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a6d66ef888874a21f8c2bcfc8fe82daf37a10a63634be88f2503819eb229b3. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZK6N2540470.
dis moi si le futur nous réserve de grandes choses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab7fbccb5e27262fc4a4f83a88bfd6f4878a94b7039c7c72fb24558b6190075. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6F2548991.