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 0x12fe98764666b1c46a23a3678765ffc4f1fecf15ab5b37f6ed728022ab7c92d6. 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/4f0f5dc7-8ba6-4cd0-b6d5-7e12b1ac11a2.json and https://artists.proofprofile.net/proofs/artist/4f0f5dc7-8ba6-4cd0-b6d5-7e12b1ac11a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lily Of The Valley / Return Of Happiness
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 0x8950af530faf2aed524a883a74a5a35faad1d765ddca3a1889626d2adbc8b437. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/USA2Z0910084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ea6556ebac47293d4d8daf4db9d5787f0a11613d2ced148f92b406b6eeb00a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USA2Z0910085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037f000b4a5e9ea1040b4440fde79fd640c4e242ebd670bfb6d3e2a6749e626b. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USA2Z0910090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcc90bd45203e666fc019890ae572954cc16ca88f3aefdff83c225a33d90fe1. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USA2Z0910091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b8488354e831c9895e28c29d7ddc767b53345a9f0e928fc848cf0ff13d884b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USA2Z2001856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69027677a467f949ae31d8a19379d9eb0858b39fd2127f398e8cf8bddba64f48. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USA2Z2001857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41b68d7a8d230c1f7260501a12243ae03abe51ce913d6937b3640f60f4fc67d. 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/USA2Z2001860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217607b08b9bcf78916731af11844a4a02b9847cab4b5992b40095e8df195a1a. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/USA2Z2001862.
White Plains Leather / Black River Falls
Wrapped in the Flame of Illusion, Masked in the Clay of Behavior
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9562c1f7ea85e22fe69c6c3b1b0522ff52e785b06188cd8ab2d5ded3e39fa5. 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/USA2Z2001850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72ed691a3c4e241e27a42ad40511d0914d41e39d58e5253380100a08da0368c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USN681510046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5b3ce749bd53bcbe2b60d9cf2b7dc061ad0fb9dbdc15daab670cf679188bef. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USN681510047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f26074d3d822493a0cd5aec09afb5e4427742099dbf85d7f88024088231c5c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USN681510049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969b03e8a8bf382e3712e1f7fcb0a8e2f131306d993fb8d32615c4385ccc6f20. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USA2Z2402005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f34576943d0d3e5cf0e145f4e3ee8b7210e02a95389998ca5bda7ba2a1ae6a. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USA2Z2402006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6f5892317acb6774d456762a9a5300a7db2e92b9da7946c8f35a7cc4efb4ba. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USA2Z2402007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f6b9786aec7ddc445f37f44ba9b838fa75472cbbc252f603c98c2864c8ab26. 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/USA2Z2402008.
Black Table With The Two Griffins Attacking
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b903a42cb2877f80b99dee52f356b76e881f2d25747ef641d5e6a6a02ffb3ea. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/DEMM41801284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b90e5e285ecadee880e9b259d0b3ba327b1d7b8db203be1d754230b03235b6. 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/USA2Z2001546.
Worship Is the Cleansing of the Imagination
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ec57ed8e508bc4a7b02af0014d2ac8313532999b6bda90c5358cf8aa7374bd. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA2Z2001868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f7c4d7184aad4ad7a23487739681c993edd6971520fba8c4e64f48182feaa7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USA2Z2001869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dd2a6a2ea7cb633372f653064b619e7548bcaa9a03d4aebb125bf4456b143f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2Z2001870.
Road to Ruin - Prurient - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8dac6642c9a2a89af5b84126a5147d9f83e5d527c5df7b549a4a41e9193523. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NO2JN1701051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5456c63b4af28330b3c7966127f1028ff9facd81bf0f33bb524e0c15a4493e6. 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/DELG71401061.