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 0x463b740baf4e06baa18e4440026c9ed763e7440accb646d69d6731b6c1e100a1. 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/25ab6936-4bd7-4c2d-9612-3f0e31282b24.json and https://artists.proofprofile.net/proofs/artist/25ab6936-4bd7-4c2d-9612-3f0e31282b24.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 0x632f644e14e9010541e4f1e8e1f029becddd7cdecf0b5c2305a60930bc344fa3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FRPHC1500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e07d4244386b0c8a347c0c3bb0638d286d100965faedec0a5a6ee0e88d3a30. 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/FRPHC1500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856f781d144d060b8c5e88a2dd4fed02e1aeb576f58c94051e061941e5b61cb8. 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/FRPHC1500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931b3cc1719dba457881d6460936c145f6aacacf25f41a23d71e5d41d4d0f4fd. 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/FRPHC1500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d93441c1b152902c9fbedfcf7aa2288a298a9660d9dc59c118bf5e0e8d7e99. 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/FRPHC1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253538f905330c71599156990d6a5f52f18c1c15be022de2d673cccf94cc4f8f. 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/FRPHC1500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae019661bccf22fe6d4d512da9dd1ed1511a0923352f3e17f46334d067655c. 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/FRPHC1500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b8258b9273f885de3176997d3b9fdebc83c37df78eea41a7eab56766c97c7a. 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/FRPHC1500033.
Please Come Home (That's a Pretty Good Love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd48ad524885ab15e753064dc1a8f0a01cefaea09ccda95e45f8a5155c9f6e9. 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/FRPHC1500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60114013b04b928a444deffcbe73215680ac5a674f8a708a560250d943191e0f. 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/FRPHC1500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca14cb499e1e912bde82679edb9cfddd065de8ad94c09f33f1722dfeeee572c. 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/FRPHC1500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770bee5e7b9e1c91ff44f53b3248a0c5395427485ed141af18bbffd788fbb34b. 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/FRPHC1500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3898cb025b8ed99d62f5ae8fc5684ac60120cdd5138efa36dbab7fba22ff427. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FRPHC1500038.
Electro Swing 8 by Bart&Baker: The Best Electronic Jazz Swing Music Selection (with Jazz Radio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1d2fc06fe41799fc4291d2c3928337a4c13736a082b6d8e33305c870824552. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRPHC1500022.
Forgotten Skank - Smokey Joe & The Kid Remix
Forgotten Skank (Smokey Joe & The Kid Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326ef9f11f867f2aa7fb7333ff4f2072e8295437f311f12a97c8615239bd7dd6. 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/FRPHC2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3467ac54c8fde808a0693b808eae1e0a744f3f161dc9c4735ebd44b68500f745. 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/FRPHC2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ba4bf8828cc1fa93e531b324ba8096b837ef7d93b8b9c92712c91b6f106cc8. 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/FRPHC2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb07682a6536d8a1eba57dc9fd139c1afa1c844ae94e8fba139045f7201eba3. 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/FRPHC2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc9c73d11a73ac33e307de156d614336d3a5839d268a0523396e88ae00b2aad. 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/FRPHC2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b61f9fce626b1c1e49b00ba6bab61eacfc09780bbc22eab631fcf3b00b10c2. 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/FRPHC2100005.