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 0x83d71e525868c4f4eba4bdf25040ed7227953e3463f220058ea89271724a0b66. 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/4653b3a4-dcf3-43c6-8269-7ba1d2d6c6a1.json and https://artists.proofprofile.net/proofs/artist/4653b3a4-dcf3-43c6-8269-7ba1d2d6c6a1.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 0x9aa23918eb2f9f963c0aa9d6affabf53f65e59b2028a2430a3155daa17e18081. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKW3Z2000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc450438a33c1fe963d0ecc35e62d16c69ef33e6bf06b6c68c7209799efd0dd. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/UKW3Z2100849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed93f793519a0d28341e4c12ccd4a852479e7dac3e51d6b5ae8f22f543dc67f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UKW3Z2200337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093978e65ed417c6d7188e69616637e4d45ff0ecadf5e576a36e4c867364e83f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/UKW3Z2200524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80caac6f61d2a19b09b4f0baba318e035f71c8c6bd02f65da9b551e483de0932. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/UKW3Z2201659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2378e46297ba92cf83c62cdcd05d845d70b6567b5a7ae8e5a53d8214353339b2. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/UKW3Z2203409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6206fb70378356dec133f4ce9747d942833df1817bebfa450bee5c4e204f1e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/UKW3Z2301618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2c90453dbc1fba397633cd5d4f119473e55c61f46f3104a696286196abdaa0. 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/UKW3Z2303490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f20a3698fb7942c29c2b8710c22e9201f4c432f687a51fee45cba0b08356324. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/UKW3Z2400517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826f274fb20ce0673657622efc2bd99f620193a124ea063185b153a04a3b54a3. 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/UKW3Z2401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06829063dfe9c3aa608222e09f4a70d423b2124389d9c9e71edc4a7a3fa91d40. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/UKW3Z2401354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac8111e742d9cb72c3d1fc7fbcb6865dfd3729ad42bf13debbda795f4902c53. 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/UKW3Z2402330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384adf3767408a536292b51dc31773b08b92e5200ed33c1a6e0b2913c6e498e7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/UKW3Z2403308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd7aa3255c4040fd5707d1867ba9f42bef4783820da84deeb6a92d986a5d5df. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/UKW3Z2403445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e104053de698cd59480428d4fe9f285ba4d0876a3bbd6f21fb3e14005621c30. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/UKW3Z2403767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd684934e98d09f826e51df7bfaf369f017c592f928ae0683627a9f8f984adc. 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/UKW3Z2404239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c20da220b91a4a23b85cf8d46355927b6d68ba4b173163dbcb636236f84f09e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/UKW3Z2405056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8922a6e2ce4a9e9b63ee8b0653e6ec4b98c0b0b3744664e1aacec465033b32a9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/UKW3Z2500182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dac222085a18df137e511e971bb1b3da77e5515e8b6098d350b791a1960060. 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/UKW3Z2500230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4053d6bfefccb930f219d9de379aad7dd3ff7419d6b1188212c6ef8b19a605d. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/UKW3Z2500233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed255cd1e1791c09ac3716a7b1654148eb21b4d53b938deb85ceebdfa5a64dc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKW3Z2500715.
Tiny Moments of Peace - Meditations for Kids
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaeb898d99cf051c3000a5c86bf562ab0400887878f9ab759e7615eef3f1f2f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKW3Z2502240.