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 0x371f1b9935159197e083e04a78c67e50c478e387bf475dcd195808f9f55ec691. 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/cb7ca7db-0d91-4270-95ba-17f12bd573d6.json and https://artists.proofprofile.net/proofs/artist/cb7ca7db-0d91-4270-95ba-17f12bd573d6.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 0x7d897aad9f1788e2a1fb1299289c2f7c30a6637b5ec703f0550f2977e3c67ab2. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/SE2WJ1401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204de1c15fdf5ded0a8ca1cc9669fef6f83afdfeadfb05e76f8bfc8735ee4a9d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SE2WJ1401004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaec7393e83bf2459f588056e202de5c456afb2b01704668d2416df11840cbd0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:56:26Z), 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/SE2WJ1401012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5af751bc2256e35134e210be562d5191854174b1c39913d94d3e3bb6fc2729. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/UK34N1300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2cbf771c1e4277a53dd84ae3c273518316a143ca420880bb08077d330ac23c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:51:13Z), 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/DETB31645151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecc4136b71f7df4597d4cf0d7ac7bdbb637f0053dee5da1123fce4c7d17f0a6. 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/DETB31645153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a709bf10edc8b718514f454626dc3f0fe475e3fea2d101954f400dfe599d6bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DETB31645154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ddcad137c7f1937c560678b4dd2de54e0b65b87fb53dcd88001ce12eb2afc7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/SE2WJ1701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061f525501b4b16c304049fefffe21d0b5fc1a68797e0232bb081de4b45a9853. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:51:48Z), 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/SE2WJ1703003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df1dad5808d6e63a4d9a44fb83ef498735df95f42d434a44e7c05f11b1b633e. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:29:39Z), 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/GBBKS1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d98ad30e78ff2fc9d3e10b7cbfb1312dddd8bb7abb1ffec44e5f451cc96490. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBBKS1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df1dad5808d6e63a4d9a44fb83ef498735df95f42d434a44e7c05f11b1b633e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GBBKS1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c80c29520a8aa616648e67ef98fa1e0875da5f0a5e285027dbd9148b04cc904. 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/GBKPL2023877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b95e34eec2c22c389e51c11353e607a38e2f4f61b82d9e3612a1acb790c06c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBKPL2153906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a6423ae15528237f64b6ca204aa6a680de23edb231f6a56f1f2e2187aec80d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBKPL2154905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b95e34eec2c22c389e51c11353e607a38e2f4f61b82d9e3612a1acb790c06c. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/GBKPL2153906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e022e143eead17c311e6fbbbaaad12403eff06fba5f16f3788280b4b277178b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBKPL2023876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca76590b6fb085b01e71a8c20f019a02e58853095c621abff7d216c94a6113c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEVH21800541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe113e0d15baebbca56bc31e09457569f79cf42048982881b9906c5146752df03. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEVH21800542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdd2ed7e06dfd44b99b6bf5a1c305d24a9778c4154e9f71b576f5f81368396d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEVH21800544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bfda9c620a346b1065e24c1e54a0d60d85f2009cfad54cb32474ca2676bea0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEVH21800545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d6307388298ccfcdcbf2c63a6317f0dd972c9b14d164a63a54ac9467bbf50e. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/DEVH21800546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441c27b43b549b907e7410c633865503f227e99f98e5d625ecdd6687b53bfc7b. 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/DEVH21800547.
Shame on Dry Land (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3063b39bbfe8c6aa3b59a1c952f1cf134dd45a91670295740ec7f80391a4273f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEVH21800692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb14e3cfbb98705d2da7ea2ce509a18bb8402cbfa36e2c668e3a819af2f53484. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEY491300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a5193c62d6ae96224364d7d250fd91f663d004faa1148e367703fcfcdd7f89. 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/SE2WJ2205009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b599e8bbc58e95f2f57bb53a79071feef265556adc44109ae8642a40a16d5a9. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:59:13Z), 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/DEVH21800492.