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 0xfa6f192c2e90842a26bb395061e26fd7e66d55fc41a64ca8c66f369f9d0f327f. 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/7666b6cc-b07d-4047-9ce2-64ffa0840e9a.json and https://artists.proofprofile.net/proofs/artist/7666b6cc-b07d-4047-9ce2-64ffa0840e9a.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 0xeed3a0243a23d6e0914568a508deafc1f634ac887bba526dd90272d202e48e13. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NZSG02100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb30d1d01148bcff16b6d5b65caf87feb8de11c95710267d6e05fbda8bd0f653. 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/NZSG02100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa232ca12dfea5a5d4367471731c103194ed120fc41bae0b8b5cad508faec34c9. 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/NZFV12301153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0a9db172eeae6aae00e07901814a81fe207cf0958444b0b39a88cb65b02a88. 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/NZFV12301165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4144ca00e2e0a7f8c8258360400d8d718e8b216c6d603422dfb29d6ef369da4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NZFV12301073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa095af39969c3f444923830db82f5c7967775ef85f2ba818b7efd10846f6fa94. 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/NZFV12200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb191e7856b067f1a89d73bf228b420330f3c08591f59f7a3c41781f69d829161. 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/AUMEV2239877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61003ffa815e2e07f6976e8a0c3308e9fd2e17920cd5db280b558cdca8a8f83. 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/NZAM02200631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eac3f200e25f9ca2b1efb5e2b8ff4e87ed759375c978fe22a17ec1f947f12b0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NZAM02200632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20175e0b686a2acfbf1a384f854c33f3728e5127e15b7189b43eccc8418a045. 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/NZAM02200633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6f73f3757ba18b03c935d2c599b4c15e9b5af3ed2b77f91fd88b229ab8e9b1. 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/NZAM02200634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09914e3bf2ae53b5dd8c7d6128164cdf48f9660ee617d9c7636292011d8dc855. 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/NZAM02200635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dc39393341f8db0e468ecdc1540f610d1ef982b5177a5b720bc6eadd4dd03a. 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/NZAM02200637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fd08e6bd158951a9521f2a9e16c1cca85d189a007d9083bd3d845c45686c8a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NZAM02200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4707dce7dbb6a8a27af2f4e68a3be3a8bb2b7c36ce5c34c6f8d8b740fe2403ec. 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/NZAM02200639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e1ce9c045d7652ecd0360a2a4e9e2af487d2478c7f853a99d7b5f1e557bcf8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NZAM02200641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb30d1d01148bcff16b6d5b65caf87feb8de11c95710267d6e05fbda8bd0f653. 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/NZSG02100009.
Be My Lady (with Pieter T feat. Jah Maoli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57bca0caaeb25ef1c8e29edfcd7010321116886612c51527384811f5b8ebe04. 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/NZSG01300351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359959eb9849a5f8ebfea7156b22b847dc5582b1d76acf4da994dfe46f904226. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NZSG01900025.