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 0x4bb6eac3f8b605bead7e1bf3daeb13153862dae66955afd26ae9ba44498f937e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72c2f0e9-29ef-44d3-90b0-8868f44fd217.json and https://artists.proofprofile.net/proofs/artist/72c2f0e9-29ef-44d3-90b0-8868f44fd217.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Je fais le vœu (De "Wish: Asha et la bonne étoile")
Wish: Asha et la bonne étoile (Bande Originale Française du Film/Deluxe Edition)
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 0xda906d3630da187cc4c47627efd861324547f241a68cc3321c9e523bc523a327. 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/USWD12329368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc600b2a2b5b135df2e3cedd88824729228b34d65c676478d05dd6d4814285624. 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/USWD12329369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d75a52ece76080df06d879c97f8690efa481e439f0251b8de379186c01aeb1b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD12329370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f8cbc260c1a9acd29fb23fd7e25ed465a078a0bf84c8e4a24f39c256fc7e1b. 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/USWD12329373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b475d2f7ddac882647cdb75eb483afebb77a70446182344aa0835056db2885e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USWD12329374.
Ma promesse - De "Wish: Asha et la bonne étoile"/Bande Originale Française du Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc600b2a2b5b135df2e3cedd88824729228b34d65c676478d05dd6d4814285624. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWD12329369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c1b900d4271c2313eea7e1e801bf47bdc0c70b746122534b58d0cee69d14ac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6542315544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d0951b327124d2a3d806876b15527301f9db1ce9e47271f277eac696d76c21. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH6542315540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6433f74c9e401be58369ea81ecec7b1f354760d63ecfaf406ae4618da46e64a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6542315552.
Pirates: Le destin d'Evan Kingsley (Bande originale du spectacle des frerès Safa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4321dd7ff5d877cc2e931a27cc3bfcf3164601df955fbc0173112d004b0a4598. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W12028272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0570c9eb32197816a3a46a763dba78b72e10c6043f295fd9aa171c9cda49990f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USWD12329375.
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 0xfd2951664b19eca9872e436c2be584d8c51abda7b5a037f301c8cbeb93ef2841. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/CH6542315542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa341e05e541b85dc00066812ec033ef22c3a444cb007646493af5ddb9a134586. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CH6542315539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc157ecb839c000323fcec8d8deecf0dd971bdb5d3aab5290801ba16b0102de69. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CH6542315545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fa7e307a1b729fe178b26d475b7d0cc6d93d25045394d85677049c053a9f32. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR9W12028282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabdfd0bd17df5cd5f5a9d605d433259093af162cb2c864bfb2478d5f6da9300. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR9W12028284.