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 0x55ccfea0f329e8dc5393d93822332400190180fefad290a558f92d411bfeae78. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0b968eb-cc7c-49c9-b293-5719d9a46453.json and https://artists.proofprofile.net/proofs/artist/b0b968eb-cc7c-49c9-b293-5719d9a46453.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 0x65aff8a30e33f1450f4668c347a04544e9c40edb5b375a98571a84dd8b8c221a. 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/GBKQU2456509.
Summon the Spirit / Demon (feat. Voice Actor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620b37aa5996f74a68ac3c7747efc9a33a5362399692aa7865983f26fab9ab6c. 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/UKQNV2300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dc97e07e214a35dfea349cffcbdeb697caed80af73455d806d22717198ea26. 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/UKQNV2300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6344c88bfe1cca2ffe5a361ea9a42684d01596e5c00b29e0a8b63660a387e7da. 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/UKQNV2300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4019becf5e9142c9f01feca04473b73918f38865aa711d742e66ae8f440d314b. 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/UKQNV2300146.
The Graves at Charleroi (feat. Coby Sey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05d88b38a75ac25aadf467b7a4c227158776d99bba247df28eb8b65f3bf13ba. 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/UKQNV2300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b887c1a25065adb575df91caee02ffc6ca4fc03404868553c098094ebb4bdb3. 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/UKQNV2300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0927f6bc1b8ca41650bc618c071aaa1e46cbc4e1689a2061e9a6d5190410ce. 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/UKQNV2300149.
I Believe in God, When Things Are Going My Way (feat. Richie Culver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e598ddb9dc02bb3ca5ab721a83d1b12bfdbd5f36e496404ede40a14576a1a58. 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/UKQNV2300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba9f8fd7f44afc4289c8985502c7171741fe7f3db0e69f505597e74b94789ce. 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/GBKQU2456508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65aff8a30e33f1450f4668c347a04544e9c40edb5b375a98571a84dd8b8c221a. 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/GBKQU2456509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33716cd73a73d452a3db08f01f43fc29b32c265d3766dad092964c0cd9749ed7. 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/GBKQU2456510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec0d092c387a03dbb5d0701a002274e769d48b9a8a0bd0c908bc083a4906960. 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/GBKQU2456511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab05b1233770741ace7d84354046a04fa7af2d102575ffd3890e73b79865a285. 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/GBKQU2456512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e21d11faf231a2370b3ae2f26982fd97f988c1fdad541ab4e7c7b1d8b558457. 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/GBKQU2456513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f0a15af153500956d0272f6ac6509e63f1fc4460a92209549914de33adec0. 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/GBQLP2300613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc41747cbec6ebcf521c12bba8196aaf27cea1ce83d093825ccd03de40bf6bf. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:53Z), 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/NLCK42219695.
fabric presents Laurent Garnier: On The Way Home (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f3a2d82c7490e5a79da51452266f1c6ce52f7e3c284a541c42b69948ca0c68. 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/GBEXH2402045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad67789e565d07eb8eaf2a34006b3d2dad89e8b944d211092b0c910e16022e6. 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/GBEXH2402046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80e86e4df9a0d4dd3ba6e81843758aaec71b7aeec11e8d115b50fc0f1995d26. 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/QMB622300629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb5b01d68710e21c5e87fc7967eaaa992b8354128ca2f56e2248b7149b2ccc0. 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/GBEXH2402048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397511db8ee28783a4f041fbecd3aa53cb961025d3d671eeacc706cffd10cb31. 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/GBEXH2402049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283986d11cb8dffe17e3c4e6170a95e0cf010ee5a08fcc64bec6163a7e8dbed6. 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/GBEXH2402050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31892b64589dd1510940976b7505409de16cdbe86a3a3624f1e28495a14b81aa. 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/GBEXH2402051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cc2a08701528a16eaa61e20a7ef8dd558f221615c7271deb76196295b9557f. 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/GBEXH2402052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996fbf5cb90fa4ad1f3b09225a1eb56b1afe691dc1948044ed6086d649089848. 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/GBEXH2402053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55f7c0600bbee085c816dc89dbd544718a613c89ce58f1ad613e631e4d8e434. 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/GBEXH2402054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99f8130b21b965ad2cf1afc8eec0f133204289e00877aae72794940be2c22c2. 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/GBEXH2402055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41164f4d8d155f7ec61a074390341a88afef3666e0ba4f9f966abf317c60b8b. 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/GBEXH2402056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bb7fe02f209240c05b31e8e08124839d2441af6104d1429bf1cc0ac371ffbc. 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/GBEXH2402057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190ec12be7b4c6bfec86257ebc06ac9867de33abfd0e15f891adb5cab6fb26f7. 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/GBEXH2402058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944f7feed572bf04e7f69261176542a812d656728e43f7498f16e6f16c9f79da. 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/GBEXH2402059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678ccdbdae73a9dc5095baed656b3e62fc5f5e81ff050eee92164f2b60eac1ff. 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/GBEXH2402061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc9eb176b21185c72441295a246c77c94d13cabd05d7a80460f26808ccfddc2. 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/GBEXH2402063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44049bc9aa0cabc1f896ba7a33d3459f57506d46bc433e749675d08b324aadc3. 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/NLCK42213873.