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 0x5405c0b54533bd7bfdea9ead0a9ca7edc78b387814e3936ad18d53bfbfd99744. 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/c0314582-712e-4ab8-ad6b-efb487fd1e7b.json and https://artists.proofprofile.net/proofs/artist/c0314582-712e-4ab8-ad6b-efb487fd1e7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les sons apaisants d'un ciel orageux, pt. 12
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 0x8162ecb1cae6b5abcde45f56cadaa335b24b52d749fd6b4481e772f653cad0b2. 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/FRX452388277.
Les sons apaisants d'un ciel orageux, pt. 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c701574a7dd2f1a812dbbe317df72dd42a34f68144125c8f01a4607ba03f26. 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/FRX452388278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac448da3be18b959f2cbd0e91fa896b9bf9b5d70bae2450a8a61495e6953a4e7. 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/FR59R2323174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31b26db2e34c9be452a8ffad831a273608502dc58cf8e1518f92245115b4295. 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/FR59R2323179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2584f53b696453a8c3dba73c7d75c4e4c8545d2ef5a1bf7c10b2be23521d8231. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FR59R2323182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7bbd832fea1c644628b0fefbee4b3656389fb2d0788ac1f81b28fa1698d550. 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/FR59R2323185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88edcd17956214703de634205a7cab4bfe7a77f37992fea7c67cf3534f671b9d. 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/FR59R2323188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e257d4b94c618fc50d0a163c26589e7167e6e20ef3ce461d0eb7f844ec1688. 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/FR59R2323191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4161361a5ec654d25ffb0705f6c31789e58e2463693c736acd42a4a74b4ebe06. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR59R2323192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0956390414c1943011d471f597d62afc7f5b6eac67b792f9b33ea66f17130451. 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/FR59R2323196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d677cc21f5d275f643de07fd9a0a9d92590c3104ea6e78db3ba9a512f4ef6c. 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/FR59R2323201.
Un acquazzone improvviso - rumore naturale