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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d098153c364ff2f65390df58f2db36f4d6278d0eee98dcaba786be327934f3. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de1669a5-c0b3-4e4d-bc14-c5ff07577305.json and https://artists.proofprofile.net/proofs/artist/de1669a5-c0b3-4e4d-bc14-c5ff07577305.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614207578ab2ae381ee6397991a92cf8171f172c5e1c5c2af9130bd74602ea5f. 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/QM4CD2200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f027d219b6ba38da2c7b06e2e4ec82eba29ab32e2753079542b4777f91dbb1f. 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/GBKQU2158106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dde7996ed888b297d9d41ebda11daed11648c2347a2c2d604bebec5c1626e42. 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/GBKQU2158108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf316fa2b3ee91f2f2036f58f0a08acf225fba918ced831ddecf8cf4ee8bb9bb4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UK5H71300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e1e2d76952da666f506dedc2aacb167ba82e69c2d6e9dc283b8473f3bb5a83. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/UK5H71300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7c77c201d71362936a83393b0dd53b4fdee2a8859d8a0ac2019ae2922041ca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UK5H71300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dfd492a427e2686c6d9678269b3eaef637f8ec4a21eaa6981afe6deec1a6ce. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/UK5H71300114.
Dont Die Wondering - 20 Years Of Kniteforce
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d79bbba60f5d9d7d5195e0e4ec02a7b8b4aee9ba45a4010ee489163e3b5b65. 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/GBKQU1314253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe783b5ce0d09fcf65c10decec5144af42795ba882626fc87b6ebc1f4ee65d191. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBKQU1314260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf703173ee42bb83d4626cca2a9fd9c6642987b226be5d8695b05ee4f99a12ced. 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/GBKQU1314270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e5d7907b23eedacb23ac74a62b27fde0615725cb4e899078efb9b337acb1c8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2378870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439836362c55401e438a55eeddfd9a483882cf1cc48be965341f6942916637ef. 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/GBKQU1768995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06616d64eebf6ed9a9ee67c83263f65edc3000d474cfb8f8eacd73e8e7bf93bc. 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/GBKQU1312353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf770b6ba32f1374f13b713165be1c8e40a295093f0d627e82e2039f5e59f8ce. 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/GBLFP1143266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bd7ec5b483871059d7e218e7f550c25898aa411738b500f8b803aaf713a720. 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/GBLFP1144164.
Nothing But... Hard Dance Essentials, Vol. 26
Nothing But... Hard Dance Selections, Vol. 13