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 0xfd16bebc27ed9c1a351a7929234251f432df71a59e2f5406952522081b400054. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d6e047a-ed4b-40a3-897b-9c08eaf1a57b.json and https://artists.proofprofile.net/proofs/artist/7d6e047a-ed4b-40a3-897b-9c08eaf1a57b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rain Symphony: Embracing Silence for Concentration
Coffee Shop Reflections: Tranquil Notes for Deep Concentration
Mental Concentration: Binaural Music Harmony
Tranquil Concentration Music for Clarity
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 0x0bfda12b534039e6c3d5a41fbb0342fa59f80737c617b93af0707901e383a796. 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/QZTV32579965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2bd4632e2e5e4b953a27d0bef05fa3fd3528be6a94e933e545176a0d10e418. 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/QZTV32579973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b12ce1c471a2869a6e31a5b35686b606a05dad3c8ebcdcb42b930faecf03f6. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QZTV32579982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd255076fbea48774a632ff9bd072d1250afca7ca6510a94619fdde5936ab43f0. 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/QZTV32579990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1297a1990a2b51702996f1e017593fe2da93cb2606969dc2fb2611164170c8. 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/QZTV32579999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6effdadbd2e3d09600971a9e28b2c2755cd1a85e918f052bfef7ae1670371b94. 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/QZTV32580013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41f2a926a8930972c5caea195ab33b20b34e5a33189ebfbdc78daa5d714e83b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTV32580036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80655eb737d069ba9263a8001da368d2b67869c991f084076f793b5ddb51977. 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/QZTV32580047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba32de25919996ad358bbaaa1512bfa5a8109b622151efb2aaa9122374312a4. 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/QZTV32580056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5338f6202209de60fd45e4b92318c032720cd05263eaae5ab962ad9574a8ba48. 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/QZTV32580067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea7b3eff8ac87a1f7229f1532a03f18504220d01294dd9435f25c11ff3e9901. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTV32580076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda824cd616e955b495d76b8bcfca25699d93c2cfd72e38c8727ebdaf41ac74c. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZTV32580096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8ce75c1fd85c433940015ab707a4bad865bce4c623f515cf5887ec2ead7118. 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/QZTV32580106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fbbc47eab1daabab7121f9f110628123092dcf44d161bcbb3d8f2fc1bc4f9d. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTV32580132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ac600777cd2d69cd32314e0dac69cb3675c11eee7578f2b8085faeba562b9c. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZTV32580164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd76fbe6c245c812d19f09b90468d490ca60969750efb2443c3543d8828a83f1. 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/QZTV32580172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cefcc8b17d9fe30f105df5419363a98c5c22c432e934ab95af9b551ad6f928. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZTV32580182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6391cc3a1efb91939e1ce9b9c284238ac23b46271673c15bbee4b2aa0d7bbd. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZTV32580193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61d3b9251c80b12d2cf70d628ed65c8a9621df5389650aede8f9c03970d4e86. 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/QZTV32580200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492287324fcd62749a4a819c7344dfd26240d871fc0648d191ef794b050dcbc6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZTV32580216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528f0665e3321609918aab75a2e70fd02fe2339e52f5277328a3df1efd493877. 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/QZTV32580225.