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 0x797936812671da2738d99179a747d95f29720f0d54012495e7fb57db02288d89. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dda0481b-27d4-42f8-93fc-82bcd1c70f3e.json and https://artists.proofprofile.net/proofs/artist/dda0481b-27d4-42f8-93fc-82bcd1c70f3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
P.C.B Spring Break (Panama City Beach) [feat. Tha Lit Onez]
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 0x5454a19894c07740c1eb0f14855f1e8a80ca6011e3e70b9956e2875cbbf03430. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:08:20Z), 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/TCADF1730685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9c7c3813e9cc3c46de4efe338565191fb833f4d2c334a9ca5b1235177e5aa9. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T20:58:36Z), 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/TCADG1720275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449029b92766a4360d3140f5936b0c3b624a750772b6d919c4a55038bcfd2221. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:38:20Z), 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/TCAFH2019046.
Dallas Cowboys Anthem (Superbowl 56), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512ffdc610adb397a146b3396f50485f92a82b00643168741a9189c43a4ebabf. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TCAFT2109772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d17d131d35efbd3a5a7026fda1277c401628a0a3cd98076fc1630e577e6805. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:45:12Z), 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/TCAFX2101761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a526bc10afff5e7c9f2e171a7bf2ea193aa215e9ccc90ef8fbb29e96755d47. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/TCAGG2222660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd369c6f043439e2782127805ccd6635e325c40732357293b79039331ca60c1a0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAGY2382687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55640dbeb2ff9326888d06e4e1b53403e53c86802c53978b3071ee19291c5178. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/TCAHB2322675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7722464f55a7ab10273e3e031bd80a81142b42f77678ed98aa0ddd36e7faa14f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAHI2362522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d72b53a2e705b9f9c32852b3c361e485d6856447eef75197b658c8d4f0e852. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:47:17Z), 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/TCAHQ2334028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec76509f226898a8de564db34ef4b362304d8a62cbc1eb904f8548e88bfcafc7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAIM2480298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75960ed8a40bbb4bf6329648e31dc35bc5f308ed3eeed77f94f37de1fc5de74. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:59:31Z), 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/TCAIO2459691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510be0e8217731cb310999a436dce643ccbf6119991304f4c675b3a4e9d0e27a. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/TCAIQ2438617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceef87e79f0575472a1d64bc6ff08bebf7cd586742a38c7b6c92246bb1b570df. 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/TCAIY2478225.