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 0xa06e72e65b52f6b6a10ffe583fc17a67850f6c781c8af79b0b7a6d10bcb8af14. 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/ad405ff3-1a0d-40bc-945a-837f39b0263e.json and https://artists.proofprofile.net/proofs/artist/ad405ff3-1a0d-40bc-945a-837f39b0263e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Musica Classica Rilassante Per Dormire
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 0xb184541084805a99a1f77f2c14a9f9d95bb2e077af87b95566d2fa82c999c94c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLGM11947541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d804819e3b393c77c09c28cc710c0742e373c896b26910ad1a839d2c8e5a087. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/NLGM11947873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362c1209c462cdd6c1a91e54c35b5705718db6f567c91bb000f0cf084b030586. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:03:27Z), 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/NLGM11947875.
Musica Di Pianoforte Rilassante Felice Per I Bambini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65368fdec7ca7402f176a35f9b488aea2af3c77d7232dcae25bff2dae0c91d2e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/NLGM12118601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e4d84d8313a8354a47da095c09661969dbcaeff5649401e5db866beea053af. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/NLGM12118602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31290d1106013cd5b4f6d765fc8c5c164047aece8f078918a1785ca7056ebc97. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:21:51Z), 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/NLGM12118605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddb1a86414e11ed527bda26bc168dcca2c8e5368ebbdcf9cc9b9b962b447899. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:35Z), 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/NLGM12118606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe269a91b5a4da017bf9d2784add4d5cc23338ec87f0ed983e7d4e200888484d4. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/NLGM12118607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883582dff4b434eb8cb5b449c3cde4db8c928b702237f1a42e8a7231750299bd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLGM12121841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2c61ff2327856d4f89dfc4d6d84f8aa0c541ad88bb5e67f47511d33df9fe8f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NLGM12121623.
Musica rilassante da ascoltare in viaggio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66aed1caff253c2439ded663dcabbf92f1023342813e0d3f90e14701022c700. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NL6VJ2204301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607f66b9fa49a3a48ef9098be7668ecab274e05cf17ff97dbd0aae8d76262290. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NL6VJ2204313.
Canzoni per Bambini al Pianoforte Spagnolo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f3d0215ead4478a33028f2acbb0ad6c0a143fc3044f30312bb016922baee59. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/NL6VJ2511748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0a65f0a2b2322d52a88aa3b73c90f35967d93e2f27dbf4bafe9bba4bdf48f0. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NL6VJ2511750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d02da86b65c5413b4633b5ac44e26b7f65b8f1c0cc1e59836adee0f1d9106d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/NL6VJ2511763.