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 0x705fc223f4b340d5ae72e859050f72ef16e9da779284a0e737911b13173e4d5b. 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/06ff9699-5de7-4226-b386-1e69410ed9bd.json and https://artists.proofprofile.net/proofs/artist/06ff9699-5de7-4226-b386-1e69410ed9bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Noladeti Lehalel Otcha (I Was Born to Worship You)
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 0xde1594653d8e37bbd2783f29ef63bf287a085781231845e8646147820f8294fa. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USCGJ1447125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1103db2b93b4f5a2a2feb7c7f76305cb0ff05ceef30086625f7bdc7fe91b5d80. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCGJ1447126.
Hareni Na Et Kvodcha (Show Me Your Glory)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22120a43a111c7f0c96044a3535f4de9d39a33b55a1e2c96c5dcd186eb35349. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGJ1447130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb742aa2d96b5ee123e63f61aebe126980169a8f8216ba8527fd7c4e37e81e5. 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/USCGJ1447131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89e0b719e864b41d891b22a79dba460af5a59d38b8025786bed75081f3c6e35. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/USCGJ1447132.
Raui Ata Yeshua (You Are Worthy, Yeshua)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d38581a759527dc17db59868add337b5fa6055f6d26f440880f8ced7948fa78. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCGJ1447133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f1ce2535cebf464b7fb584b4e3da32b85d3ea330554d002388447e240bfd96. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/USCGJ1447134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6794b61e6ac633266bf3319814ffb782cbb7bf9333f6bec61f959ed7cb40f47. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/USCGJ1447135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9cc33303d22ab01295c2d261af885ef7e55bde24b14dde97a5c5f696a055f7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMPKX1872012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc706ee9e9252a41e243a7d2626a28121fb03af9265e1bfc7f828f9a551825bf4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QMPKX1872013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0c9f47f16ca0b9e5191765b721f528a11ece21bc665fbf66dd225ba5546442. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMPKX1872014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c98a78724c9a063ba2c0827ec1be2e339957d0eadbec17e860acea0e361ca68. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QMPKX1872016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb10c411322ce2e818a0aa943123b5157258333cf9e7cdc1e165d18cb032dfd8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QMPKX1872017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b508ae22d857c354b37811ea6f4e1f3457065a702cdb0e2fafdffc1dc35f94d. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QMPKX1872019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1e4820c8134312c255d5ace12bc2421434e14d1a52254ab5172446280f70a9. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QMPKX1872022.