thumb|right|upright|Thyridosmylus fuscomarginatus forewingnygmata marked with "ng" A nygma (plural nygmata) is a spot on the wings of certain insects which have a peculiar dense cuticular structure. T
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 0x39ff64c773b3019dac53c987d9263e5047ef398dbd5c0cea7b419eb46a1bcc41. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08d382e5-c435-464c-bbb9-de50ac5e39b1.json and https://artists.proofprofile.net/proofs/artist/08d382e5-c435-464c-bbb9-de50ac5e39b1.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 0xdfbd2fdc8813939442829b8f2be2f05db3a8e422cc9cbd7f81d354dc178d6da2. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/TCAEN1908093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6203333eb7e090bc0a51947ae1c1dcd7f1c3690bf9472b486f86c692522a5544. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TCAEN1908108.
I Sing the Body Electric (2022 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d207c745afdb6aa51acca25bd72b12e3b0bc1d28777b81a519fccee5eeedfe9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZRP42331726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4d9b9de302f9900575bc64bd76fb681485923f42c8e16c2d5bc70605f6abeb. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZRP42331727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36c0864af10d8d8e11ac34eacd40a26a553b5e6ea540dd50c265982f89f8a55. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZRP42331728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67558de4b121ff725c3eece96bac031d9d40e01dbe7f4f42fa0a145460c2eb56. 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/QZRP42331729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dd4acac09942a558aaaf670ced266f4d416584cf8b8d73494bb0caffa05ab9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZRP42331731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20056e8616703c98851207b6e8f53312884116cbbcb14360a8e4f3ab9a1454db. 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/QZRP42331733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e74bba0a07eb3271121c668710ea2faa776104add7ad1db2c17dca082b7ac47. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTB82475181.
Colten's Montage II (Extended) - [Alexander Nevermind B-Side]
Blaze of Glory (Alexander Nevermind B-Side)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0777864a298d03fd5d035a03208f666fffee40b4cbe8fc57a999a7d8e0bb9d. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/TCAJF2556535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a2b374bb90566cf48b165799e44e2b169a07cfc1826d07ceb7244c643e0130. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TCAJG2596885.
Colten's Montage III (Extended) [Alexander Nevermind B-Side]
Sapient Creature (Alexander Nevermind B-Side)