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 0xaf16a5d82ca85c22983aa67d1e9a940544fe7dd45ebcdc74e66eefc2ea51fd35. 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/5675b949-a1cb-4485-98f3-7bfd2a39a4e7.json and https://artists.proofprofile.net/proofs/artist/5675b949-a1cb-4485-98f3-7bfd2a39a4e7.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 0xf988e565db05b6772fa5bebcabde24824ee23617cc96ffa631f631b43982ef9a. 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/DEGE91900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2067c82f3c4074f34c06501c6fa46550079c1effdb9e221ed04a2087ddd9896. 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/DEGE91900020.
Ready to Die - Mudd's Extended Mix - Blank & Jones' Milchbar Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adc41672215e6c51de416985e8ff50a04d5a5fb3b89b195080891e75c5cb1db. 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/DEGE91900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322373dc410957133216c42a92a93d13eafd87a6f4cc7bae7f3dbd2da26b893f. 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/DKAZ71834501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb8ba91417ea8d1fc6a8ce2d8f786c8b586613da980e1c82fb8101ed85641a6. 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/FR9W11727688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958ce7c040fc7d3588ff1ccfc263b0f3435c214bc11856dbe57d3e919aa7a56d. 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/DEGE91900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbf268a4edba17053130618a1932c26ed2e79b5be86fa194d4508e98b9dc7bf. 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/DKAZ71818701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8bd16c5451cdbc3b63a79fb326aefea270068e7eb75645cde37aaadcdf8e64. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDEX1900500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26637ccaf3b5622f0c76b90f270220416fed729af1d234ba2bbf98acb981acf1. 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/TCADQ1839316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d590c5bb6db2bf6d0e94cb895694ee6be0d06de8b0aadd763dd0c8f9eaa29a. 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/DEGE91900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f71cf1d0ab28fd45b9d46b89142eb6f34f8d4dff67639d198e221be8b94758. 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/DEGE91900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4702d84f687156a4d6c823396e4085b638c0c149b085aa548e207c7bd02be6. 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/UK8SW7000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe308d4f57cbc7161ed8e21702eb6b05a41a8dacabfad9c8a68123924d6616a6a. 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/DEGE91900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb72f5d32568ab1723e0a2b4fa5ccdc306bd332148241ad76625817464cc2b4. 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/DEGE91900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0863785bb890d38d337c38c39913486f7760d1ce42f2e407af4db6637b9a72. 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/DEGE91900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b433944cc88149839c9cd777cf405e904a5bf1d649ecb502c7e141b002c38d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEGE91900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9495463914361afaf51f2d4e3f3b2aa9d1ce425552c55a19dec6263c875f0cae. 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/GBSWL1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9448d99b7073f0d982be55194190d3ee807f01646c7cf2595c08a14480401dc. 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/GBSWL1700019.
Nariyama Ayagu (feat. Satoko Ishimine) - Max Essa Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636e0bfd405c01d4f4cdfb9fcd1ead2aeacb36602ad0116f40f2c9dffc327773. 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/GBSWL1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3144760c80b1f57468d4ec4dd83912c6d3fed2ae9a5648df964bd33415020a02. 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/GBSWL1500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec18145c11da1b0d12a7a47935cc18a2c703fdc28e964e1acac67e4118f81c9b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSWL1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd26bde31b0a7e019b2ea808a59fcfd69f8ef5ceb55624cbd9a11227aef5798. 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/GBSWL1500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba98e0e3cab820a1f4a5d786bbb9dab71ad2b0d7890450483c1bb812dd8e884. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:48:40Z), 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/GBSWL0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d78ed29e820a7f17b16a5ddfa3de58e2b328638600b9fe61a2d8e5d13d4e72. 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/GBSWL0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71812473c3078b1d347d7a22f0684b8d3892948564aed44e80cc7d6b0079764. 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/GBSWL0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe12cf5a0ffad473a745be2955c4c633838ff1f482c40f8e34b917345bb98e6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU1901452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2eabc8edadb398573f853954a2d665071235992ffcd5cd660a683594737123. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU1901454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074db5e717044b72f572a20ffb34cfe7879db1eb0c9ec2cd08c81b7988863203. 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/GBSWL2000001.
Claremont 56: 10 Years, Pt. 3 (Idjut Boy Versions)