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 0xca42322b2499ba5ad5bae7c213c1cf8cd1455f98112ba312ac3be0b109c67a64. 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/69d1bc8f-448d-4e3e-ad60-b4adc265fee5.json and https://artists.proofprofile.net/proofs/artist/69d1bc8f-448d-4e3e-ad60-b4adc265fee5.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 0xb618500081f81a35eb2746567dc2f640251788450569147c4ed3f18e5a6c9126. 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/QZTAW2324739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4852befb062b0dd9f628a98bd18101c80c2e339a45c12a71281dea9febe17f. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZTAW2324740.
l'aire de jeu paraît si petite maintenant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48ddb543b151c09a9347f8da4bcb09bc4c1e05fc3fc0f3dafcbc99437e6399e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:26:09Z), 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/QZTAW2324741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a7b53deaf13dade7b229fe627647ebbadb54ffa9a8ac3a19d67158cc379396. 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/QZTAW2324743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf250cd11333b815bb353d92384fdc3613df4cb01333939319cce1d51b5827a57. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTAW2324744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e990a707de0377f313a05f91b7668b4f2e8e4df4e492e82f7589f14a0657e31. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZTAW2324745.
le chant des cigales m'empêche de dormir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d268e3ff13c45a7047f92f4d32a46c7f45b19674d9e22fc214cef1274132176. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZTAW2324753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4584f2c0850ae0e07f4688c6d81e698f7c3f6b3c66e5973ea14708080caa73. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZTAW2324755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a1ecc112f53e3866acde1f3aab84d47bed9dc618e300ad71b5e37c3fdacf46. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZTAW2324756.
j'ai la main trop froide pour réchauffer la tienne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92afadb479aceef4042f869a794f2c29d56a202ea786530f7e3c4e0eba2d228e. 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/QZHN52490793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5ce0df2bfe818649063f02e2ebf50ff0957b313394b99dfd24838ae98e985d. 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/QZHN52490794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308e3bb54c14e197f1a4a4a1309eef12d341e5af449ed108c9261d15847f2fb7. 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/QZHN52490795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35162b7ed770b3e9561cf43c50ab45e6c2e9dc5f3d13db65d6a314a6b2186256. 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/QZHN52490796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad777fda8065574673533adf2c70ae2f2596d534c8bceffb304d4dac5af11824. 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/QZHN52490797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d85eca00c3351bf869f9fad04eddfa65f974fd8310845ff0a8e4195ed9fb12. 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/QZHN52490798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81e3a9ae5e1990697b5184a03925afa46272741b15259370cd61cf0b5f5023f. 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/QZHN52490799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27aa1a50ce3d1b550902ab8e10a6fcfeece0e4595ebfb00aa3b9730e0d517d7. 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/QZHN52490800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049bc427f87687f3d13af6a440b08abb2f05db2121bcdb4b6ab8ecadc76b178a. 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/QZHN52490801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63efeee139afa559e7e29002f0b0da1c3b6ecceb4929abb5dc3a5519d0234957. 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/QZHN52490802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255b5eda19ad5c6bfde14aa2fffeaa2953668cbdca3e1e1607509afa76d78117. 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/QZHN52490803.
me laisse pas en 'vu' j'ai mis du temps à comprendre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a258cef2e5aa9a4bd8cc93ea1caca6e3df8168c537a381ab67ea6115b35c16. 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/QZHN52490804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f20e46937212ebae6c675235ef490417883912ddbfe6ceb9776c3ae0ca2bdb. 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/QZHN52490805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ac5f81f006da180622d9409992cb68abd5726ca79ab0a8e5bcfa40a4b4d070. 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/QZHN52490806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879145ab9ab5ebe026f7a3e65085ad3dc8813a35d02bc820a8605c6d2c1aeebf. 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/QZHN52490807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e117a7b8af90d1464811554afd0aae9349379e601a67b5c362f1f8e65af0111. 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/QZHN52490808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf096c483f516da5002e851e8d486a5342987041178fc5a5f9b10ea71058da4b8. 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/QZHN52490809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02fe1475370d58358a5a44c52165b0e9b92ef8c6718f81d121a07c2d0f021ad. 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/QZHN52490810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a325cb75320af41afb5b529d983dc7a4e3b8244597e659a23a3dd296342a10. 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/QZHN52490811.
mes gants sont troués et c'est pas des mitaines
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccc12e26e1b4913ac10c4f44eccc756cdb407d3da18c7c788c17f33c5906c75. 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/QZHN52490812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31aa8c2bc7c83947d0755727e8d3fa340a45bc2dd1c17c8dbbad20cf32cea2af. 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/QZHN52490813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd394b1223b6ad6041fdb2a381e24bd63ae277684e347abef7bb4ef7ffa40ed5d. 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/QZHN52490814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420416280cb585c4d2645abe3daf93174daa2ce8149e6c9934a073112be38192. 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/QZHN52490815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a8b1d2df2584a007b25fad369ee9bb20e64cb41d309dfa9b44da86b0262197. 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/QZHN52490816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5fc6edc3a9e9255d4870fbd77383b35b7f6efeda15c71257967c3ca316bc44. 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/QZK6Q2585651.
referme la porte en sortant stp / est-ce que ça en vaudra la peine?