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 0x753bbaad3a5137154d8104ee6a7bd04730df513d2d8f868fb69126f94d13a730. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27d085b1-affe-4e2b-9310-be987acb3883.json and https://artists.proofprofile.net/proofs/artist/27d085b1-affe-4e2b-9310-be987acb3883.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Délicat Vol vers le Monde de la Créativité
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 0x778ef07a7f46300dd7ec96a55b4c8ef5f9bf551771f460af9fbd7526e7639aa2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ESA122427599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd917273c7a4a72d08a1325e24e4301a84d270a7b7adbb4abb2f80182bc975667. 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/ESA122490662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0040b79030c7ed8331b0d71b59db425923a02051f1d7723efabc1d0ee488c406. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ESA122490663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a997fb7eaea91e72be273fa96e7329ee72b76bd41785b7be3200753b42e27a3. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ESA122490664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5343e11e84c2512daba85e350e36c62805bcba4d9c94ad54bdc9bedce9141a. 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/ESA122490666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8beccefa88cc41e32ca7961b53a34f30bc441f886d46d216007bdc3129de59e6. 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/ESA122490667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048e849dd7209da38812bfb7631449a2f7987a7d018e219d865991065bdc64b1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ESA122490668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d55afbe4d80e52e8a5b7c8b7d86ce647bbdc39ee5234da67dffdf34a6d1b75. 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/ESA122482113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f58419dd2db78d80a1be77465a07bc59ccca035c487dbba2b770311ea981a5. 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/ESA122482114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6520e5769f4b2dd69e89160a1ad3b24994e98e918178034ca9067bdf7e5ffd24. 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/ESA122482115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863b050143702b4e660785d7e331d14d96c9d01bee21472d47752a1a33678a36. 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/ESA122482116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e2b4e320ced477e7ea4a3d0b4d50fccb1cb9e9e8d71f504eef125f7b26c03b. 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/ESA122482117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d70d866358b01cb870246bf25fcb558a5d4634cfbd29daaee25214c3ef53edc. 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/ESA122482118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1521eb4e530014bd6c1a7f1b5aa37f94a9e8404ab62a480ae814bbf13a5aef. 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/ESA122482119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb9fa307dca4c6df0409b31241540f7a5515d2d23d45ffd8934f9f5f2e41b68. 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/ESA122457282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c1b32419d6694fc3e6eb9a193a175d522429368af803c37e0bf87c800f2996. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ESA122457133.
Sons apaisants (New Age pour la relaxation, la méditation et le sommeil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0891055e9f31b95ae8ecdbf267d5ffdf61a3384aba046314dea4367580cae447. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ESA122456994.
La musique zen: un voyage apaisant pour l'âme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9505fcee4af260d8b88bf0502904724aeef63eac50ae249b551924f8ecba3ee1. 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/QZZ972498960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db466e6fc3914b8768106dff7ceca066f078f05de6e85f5229e8a02406020f5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZZ972498961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d83bd94956a341199fe7901b86be58411be0ed2960cbef2285ef6f76325b2f1. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/QZZ972498962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49650037e3ce8b0f288ce1eae2d01f2e867fab52bfff0fbe5c1328c7f3e275f3. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZZ972498964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095cf033ee0fdd328456672f17a8d34d65877941d36fd539081b69b122d1bb76. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZXLZ2354311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd5705f1b819bb368998a0e8d245dbcca9d50337406bca5b003b9dcd05c30b2. 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/QZZ972437154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acd5f5b9b2863a4a0da301504b04509070fdf75dd10dff92df33fd2ca457662. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZZ972498967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23a4d9dc4ea6414c3493375cf2481bad409b6940fa4438a718b6ce9535fc180. 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/QZZ972498971.
Oasis sonore au cœur de la quiétude: Mélodies apaisantes pour la pleine conscience et la relaxation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9e08b27362f6c77cddf5e0f79d5f5459a90bae2f4c9b2b10bdfb0e527ed1e8. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZZ972325358.
Musique Apaisante: Soulagement Naturel de la Migraine
Méditation Zen: Détente Profonde avec Musique de Yoga