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 0xb906d26c92e7271d992207ec1c4047fcb05bca7a7f4830b6b329330d5c6384e1. 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/b79558ae-1fdc-4325-8447-8f6aab566f31.json and https://artists.proofprofile.net/proofs/artist/b79558ae-1fdc-4325-8447-8f6aab566f31.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb475d27c565c895fb6eeb9c2543672e2c3a54d53f6074f9fa2544a0a117e0d0. 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/QZSYP2328729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7650c38422c3c4d04a128335516b66f2774e184a02fe28884ae3359b74c9c9e4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZSYP2346206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1059cc0af3c8875834807b2ca15032044cb0b3cf47b47be344e30dd4ddebf194. 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/QZSYP2300905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad403b918b002fc47cdb1ca62a6e8c5322bddf0a9bb3a5f6870978126c40c8e. 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/QZQAY2352109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfafebefcfe495076ee72d8cb5a1666c349f094a3c1961cd29daa972521c617a. 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/QZTLA2317472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7650c38422c3c4d04a128335516b66f2774e184a02fe28884ae3359b74c9c9e4. 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/QZSYP2346206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732725b9dcd51179cd7cf131095d967c3812e26d43a88c5a444756950c66c953. 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/US3DF2261295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09415e545f75278b27bda4c0bc8e986d084a714ad32d502a90f42f42fbcc17fd. 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/QZDA72285735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcc8c9476d2d909f74bccf6c2b41ecd0d5ec638ccfda2a46a6b402f91a5164c. 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/QM4TX2088213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cc007fb0b491189743b8b2cfa55fa25dfb20cdcc559103f8dd9631871a0373. 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/USAT21800499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e321ca824046e60be0eeb144a5472e2c887545f253d5629aa5e6c6272444df. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QMGR31983683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c835713437cbc49d7268d0e242bc92f3395434973475a4a831fec7ac0dcc74d. 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/QMGR31982865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6d82b14e6eecd934406dabaf95a76340be773f2b56005e786db185d7d05198. 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/QMGR31992359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e6e961ef7977fdc8f747e3cdfab7139c99992f0c17dd642f20cd34836dca42. 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/QMGR31997610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1bb785acf3758658789767ee6bb8f3054e3a771b2bfb755ef8106c69cbf8f5. 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/QMGR31982975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22e149ecaebf280a14ade95d4e14adc81227f64a4babeb74a4513f907deb07. 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/QZK6J2410392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237d4273ba5d528830e8bd85e8ed79c32bbfc3ccb3aa9e993ef85cb9f1c799f5. 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/QZTB22363896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b83ec971abe3726797bb838fdd7ed625434a9969885a02da011f036e92d39d. 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/USA2P2246634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ead1a32821e35a941cde362389c0a2616ce3bb2072dd7ca044e089ec92764b. 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/QZPLS2260793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7062f552d5ff8bafc4ffec599b416d7bb4722fb757f8c06a0df58dd0af27b2c. 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/QZHN62243049.
For The Streets (feat. Peppe Soks & Yung Bino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccabc021b5a11785e074b41d739f304248df76eb4fba4e64ff4317161073e6b. 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/TCAGE2214207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd135897a56745a1a70898bb878aa31082a9a17542e1cdafe7d8dcb23867595. 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/QZTAT2103716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e04daa71841c5979f58bffa4b28f1123366a2cd7c2aaf907d84073e2f712f4c. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZS7J2401408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c04ec7199196b104cbe283638b2cb0b55792bcccef2ca8e80c0e4272758f709. 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/QZTB22417699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb971c3869f171416e8168f4078f10c16303dc3e23bfd5350c1e0d327bb2974ef. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:30:58Z), 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/QZZ7V2420549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32429184eae11b7b6ccab2d548616d026a2258585c8f29488262432c9d8fbaa8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZZ7V2422898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1aa7e650cc402e6c24f4151aee1d4b8ef398c924d9a0255c41f0ca55209d166. 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/QZS7J2465269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a56485ab8bdef4dda8e4595cf8ae7c0096e0a0228bd7331092dadb3510bdff. 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/QZTB72499367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d1d7d5a5e9df7a798585786848b1bc5bfa79cf9092538fcbc79840735aa923. 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/QZK6L2225360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9119de36f0e6b8586baa7c4d9f8d05e0d4812e16972f7370acc9456af20c0e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM11802129.