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 0xd6517c17b9a30625224eb049a49714bece8353d298aaf4c4d626665eae7e0ee0. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2baf8e13-d204-4004-9b9a-78cc10feba23.json and https://artists.proofprofile.net/proofs/artist/2baf8e13-d204-4004-9b9a-78cc10feba23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Abe Laboriel & Friends (Live in Switzerland)
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 0xfa42fa3a349a0c02039655ddaee3f3649c975a2bd7908f0513ffbfb8b40e2219. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM80533837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f1e73bcdbef609bec0d647b71589003a3714815fca816ce55eaa77280235a7. 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/USHM80533838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6175a7bfe483b1ddbf1a1d3650d1f20a7df569fa5bb2dd143d0a54b94415f147. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHM80533840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1477be6105a2537aad2ea49bab8ec869c8ad003119c6f558b94186a596b3b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM80533845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c88e5e28305aa3e7352269ef2c749f3b89ef70e08670badbac1d88af9f20936. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM80533847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5466b5029daf3111909414e05bed1bbe2499a7a6ead1bb1399b91e948628d6b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM80533851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41242130ee9d987ab405ccd2807a3b899002c619b069bbc1c7ee3242063974c9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:10:02Z), 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/USHM80533849.
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 0x473a46f8cc0505b44ead219b956f8abb8bbcdf5d85c6c8092c5b050dfa2ec51a. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USHM80533841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd748a2b237645b1e58974fcb9803359f85d9690fc5a1561cf763bb300db6b72. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USHM80533843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0a57c6c6c974b7e553bf94da9f446bb2ac20ea28be0ead6617f799e75d08ec. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USHM80533844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da61d65a82f9541d20a780d5b0c786df0967f9a00887059d95f058b7f1653ee. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM80533846.
Celebrate Christmas Tracks With Tom Brooks and Friends
Celebrate Christmas With Tom Brooks & Friends
Super Duper Christmas (feat. Super Gang!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27195561ae077d4d0918b8cd8ddbc16437154bc7159a20b211396e3a9c0d4416. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM91360730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5705751b8ed08bb2eee8ff744f9118750c7bc0c548f746ec8590ae8b2a4555b4. 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/QZ85M2069225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a2d73817e6e25f36c15487678b83bcdd0bd540bacecfad97f7b0eab4798c92. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZ85M2069227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb3f9e7b990ac6157adddaba425bdf5ac7e70f95568f95defa202a135903b49. 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/QZ85M2069228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b060a0b7b3fd9513873b4beda323d3a42eaf17bb1cd18798a50160bf2d8a27e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADR1849826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f92734a0702a954f0d5dafd0afbfcad6138c0272afce294015a69d166b5aed. 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/QZ85M2069229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba27213d25a0eb584d4c4b1bf6e3a3ab9fef582f54c9944407a02777979ae3a. 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/QZ85M2069230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71fd1d9a8413b534be422626e0ab02d430d4612d83e60188dfab76fb70f36e8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ85M2069231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac56e89896901016b7034e5e9ff7bcd5d60f59055eb74758379c1f03fb8fec8. 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/QMEZE1926639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c4a0a3424198633f671d2bb7d15949343b0388161ac8c1b411cd532766fed5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ85M2069233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c73a266e65bfe055c34d5b3c1d502a85be98278b5bafcfe07d4c1d5048bfb15. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ85M2069234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d27d6418aa5644708b700f3e32a80b61b4cadefad19897c15e014a234cb3d0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ85M2069235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3baa003bca69eb36b3fcc71ba75e2b655a2568b4ced681c72f6ada80ec451afd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ85M2069236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60610597aa9550cc362cc8a858dd7aa216594c20dfe441c8fdb9ba68af81bd63. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US78S0508501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f9647894a27d6573d00de65fe9e51ee2a91956af698f4642d22fa124c2ab8f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US78S0508503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1671df9d66f7a59e1e0df4746ddf7bf1e7ce7e7075c5c3462e2a5d06ca4f25. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US78S0508505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92814c99df5985e228d0a11b6ca39d2515bfe7bd9335d544c4742426a43fe95e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US78S0508506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194d59827f62dcc424dec24788617d0ac41131115731e31b29322f7103cca2d9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/US78S0508507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bd5799e2db77132692e85f7eeaf7272c9ae2086bc986773b1d18af9b97ca03. 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/US25L0902239.