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 0xc3c006c06dfdc9edfc95b9297e4774969b9966712c4944cb24d8882d6bde46d6. 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/4c2c2bed-00df-4f8f-89bc-76c08c2eac71.json and https://artists.proofprofile.net/proofs/artist/4c2c2bed-00df-4f8f-89bc-76c08c2eac71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Album Formerly Known As "8-Legged Dance Moves"
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 0x915573525ff631cf293515c36e26e26207a93f4108e93121c158e66775db3a9b. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:18Z), 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/USTC90918320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfeebe9799c17d8774548376eb992993940d39958293288c1fd4e1677467cf7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USTC90943624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd757cde4ae8e9a309cef05786cf4a0ce5ed113d93769f003c04bd2c64f1bb9c5. 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/TCAAW1168473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77e0f3c70e89fd77762fb7e5f5fcc0c2deb97cabb5b22914531c9bee653d60c. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/TCAAW1168479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee29fa8d2a56782ee086bcca5e3aaf11f8614b6baa86a09b111c0d155d11a73e. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZFZ21930574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b3e067241e980f3f734af43fff0201bcc3124a0277e9f8f7cd1e248cbb03de. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZFZ21930575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65baf3c386ba172a25b222226aa4c9b1d05e1426b1fa56979589d35e4d970c8b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:32:08Z), 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/QZFZ21930579.
Big Money Cybergrind - Compilation, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617862c844219968acf7652d8d4b7803c14888daed78c7593d12be510d162cb1. 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/ESA011663238.
Kataklysm in the Computer - Pumped X-Mix
Slayers X: Terminal Aftermath: Vengance of the Slayer (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278009a7fae8b0f30523c6b29dd375f86857ce5ed8596460f3cbd718966cb781. 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/GBLFP2339586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6baeb77ad29e448430278961d6c82cd65cfb8f381c090e9f2ce45f4bcabf8e1. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/GBLFP2339579.
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 0xd735fe94f509a70158e66def6599e2544f306a2d434e97f48e0a4d0287ce3d29. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBLFP2339580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc352a1e40bba6e41328de2e3a23b07f14598e92a24ae71b7daad0d6a0ee39642. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBLFP2339581.
Kataklysm in the Computer - Ambient X-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8221b46ee4dac643bc5f31451d2caaeece4a93d0edee7a4684e257e77a649a31. 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/GBLFP2339585.
Kataklysm in the Computer - Combat X-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d0b688b43d461fc20f1f4dcd4327b1e7577b6fdb2657f686166ea65a00433d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBLFP2339587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6612982a67a6a9ebf9145085457073573a4d057dc380b65cbae2a675d317bad. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBLFP2339589.