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 0xfa3d84cb25416836efdd9c960764ca4c618e0ffd0c708fbc9eb7aa1fb51fc22e. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe565e33-189e-436f-88cc-0e4ca843765b.json and https://artists.proofprofile.net/proofs/artist/fe565e33-189e-436f-88cc-0e4ca843765b.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 0xb1df09b73bc800a43c5592cbf0ccd6650f707c540a3d217ab3345cadbc753039. 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/UKYT62300186.
DEATH TO THE LANDLORD (TOKKY HORROR REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda317b38c44b1247a4b8afededd804066c2450d0c72c77db6ff7cb3a97519424. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UKYT62300187.
HAMMER 2 THE FACE (BOBBY WOLFGANG REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62518370dc9b1d59e90de87d6d715f2126a2bd4f388ecadd84d83003ac8bd8da. 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/UKYT62300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dc6fcdf82e8ff857cb360007bfe799a41ba4d083b0b8c1734b61e3ff6f1ffa. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/UKYT62300191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244846ce9e429a4ba89a08329f1ac86bc428d2a6ff8e4177d284f83f9979a919. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZWFL2305995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362441cbe2c829bc5faac7a445e3007a1ea44259a05d6c9ae7a15dcd82021306. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZWFL2305998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb1b2f10bf0201369ec31d7045e1c3272673bb674b7e2f115a62cc1e814135f. 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/QZWFL2305999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a10b12775af9249e2acdd3e403e1c26efe5cb3a66c54d9332a8e06a7dd4361. 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/QZWFL2306000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbeee11fa22e1db6abfa5de33010ee9efbb6e00ca3a39ec7dee1d833d4644e9. 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/GX8KD2304039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173eba05cdbae0760092d4ca83a87f733a88cfd5e7e70fb10d03cf99cd738540. 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/GBMA22182978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879ec7bb2f2a6a0a5207c649e7c7c6a74eefe0c71d0cab0ec8be38fd84be696a. 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/GB8KE2410197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa161de19366930c333553fa94a9ef837b093c7606397ea176f23b025fb1cc18b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GB8KE2410201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe494a2552abd9c19d5659e1c5826dcae1ae63b30000db2838fd48b199a15e4. 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/GB8KE2410202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c069616652e154aae86953db4042e72c81850758c1238b509c26c003b5e495. 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/GB8KE2410203.
Thundertone Presents: This Is Future Donk 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d55c62735d86dab742e07bfe5b0fc88a62fa4b634e127fb12a697500f59ce29. 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/CACWV2127286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f22acb8ba7afed71adae9b8d08702378161a8076b1d8525b454848e35b28df2. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/CA5KR2424423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510e2c035326d22bf2205c5b7eb5cb889c53478c19e465b3fc8f3ba7a0252403. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CA5KR2424424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a8f8412d72b836adb5d1c84631307d963fe8ae04cc1a9ff7dcba861e31ea57. 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/GBKQU2405597.
Absolutely Energy! Workout Selections 034