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 0xde6a7ae41efc5b16f3ee126b529da0852c6cdb271af47186976dcce99b41f7d6. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10bb705d-8140-45c8-8b22-110925aee582.json and https://artists.proofprofile.net/proofs/artist/10bb705d-8140-45c8-8b22-110925aee582.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nothing But... Electric Grooves, Vol. 11
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 0x2831cb112b342564425c7a9f0b79a9d52a2f50540d5c0bddd11bb832e9cd9425. 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/GBKQU2317045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aaf0219b775a5294a776381185aea4ebff4c58828ec02ef6f2005621320b93. 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/GBKQU2003808.
Nothing But... The Sound of Nu Disco, Vol. 08
I Couldn't Love You More - Bruno Costa Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc05a195031e65f40c406db13329cc5770f74b3d5b07661a02fda251bc7aa50. 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/GBKQU2014194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6d63f728244cab9f51169f7d6c4fb6ea8a527ad62e3f3a702d5db50bacaad4. 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/GBSCL2114030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ea62d0b0f9f40ef01df2a5cffb8a57ee3640d3353ecae7dd3ab668a13c0d8d. 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/GBKQU2196170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5400fa5a3638a1401225f12a98f5ffb372827fd413d3f5bc50848082e5d5b97. 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/GBKQU1521993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897d800c7623291a45d9579ab19ae3690cd9eb6aa7273f186b3e40bc470d3602. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBKQU1521992.
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 0x03e8113591cab6f704a3608d04ee0505117c12e58276f545d5c29cf3aa8875a6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU1745216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53f27118b581f219f3b64c9f5bbf274c4c526669eacdd4873db7fd8982f9d8b. 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/GBKQU1745217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddba1c348252775ce6a862b8bc823884f58b86b945eb94e077254b45bc9c448. 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/GBKQU1745233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa0787a48af5b98f18c3bc289ca307d9cc109ffe1ca23eeeabcf4f46fa6d0f0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBKQU1745220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb9310f0144754d062e636737c864b9b049f3d3bcb541d43af9d488b1a3e528. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBKQU1745229.
Livin' It Up For The Week End - Main Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860cb6b33eededdbb2b9517dece1a12bef56e71701b455973841fafc9a455c56. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2260881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177ab140aecff22743db11057294a4ed508cc0d8f3bb3f676f96b46319d0c75b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBLV61632813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd939c5706abbe6db6458722a34ef7ccd0d86f49f8e3feb7cdff8e93ea96f85. 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/GBKQU1867701.
Nothing But... The Sound of Nu Disco, Vol. 04
Invisible Love - The Distance & Igi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edb6dea28bbf2ffccc22c7cf8d440bf6460c9ae4953b3adce3238789bfca60e. 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/GBLV61921004.
Nothing But... The Sound of Nu Disco, Vol. 14
Nothing But... Absolutely Jackin', Vol. 09
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2b9eecb6946a89773cdc7f7e6704933dd78d77a1f29d61ae85eca7dd416a17. 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/GBKQU2341195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae4f4de30eacaf06adb8c67832239525eebbfe64b6aa8c6957417689e1fb260. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBLV61908297.
Nothing But... Pure Jackin' House, Vol. 18
Nothing But... The Sound of Nu Disco, Vol. 07