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 0x56a17f7933eaa6794cf87a0de2da579f9d22967e55f02c00f6cb84daa3d95a35. 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/0f89d331-02d3-4de3-944b-dffdfc741b7f.json and https://artists.proofprofile.net/proofs/artist/0f89d331-02d3-4de3-944b-dffdfc741b7f.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 0xc8ef4d801c61aa99734d6d06e8bfa8b66a4f806ed9ffe74f389c9a409753c073. 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/GBMJG2403241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ed3c10bc87e3bbf5596d788b4c0cef90dfbdc1976ca52889e884fd43da5c0c. 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/GBMJG2403242.
Seed Of Pain / Demonstration Of Power Split EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f707dc8f468252630174e629579dc00cdc6b699434afb753b226d4b9367684. 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/QZSYP2296744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bb42d7d92d6a9bee6e2b241041e838821e3941ec59251e83ecf36d54bb997c. 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/QZSYP2239513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964a09db816eed5449438d907d041979a24dbce8c7a8ef3609105423d0a32378. 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/QZSYP2211510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e59f3de8b5619225d66ef448f8f59e95047d51a52ad39c432bef40ada9f346f. 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/QZSYP2264189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48d21a0e4a71263c939a1c5f352ebc40dba688262928dabfb3fb28f8995a73d. 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/QZSYP2250855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc208a445bbf9236aac1c6dfaf71cec81e73b3c702ceebf84c709767a37c49f33. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZSYP2284415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc758b67818c7231c49f94b277d7634be08b221393e4294ee92c727e78f14e577. 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/GBMJG2117331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bf81bf159892e2e2f3644a989142d534f474a75c0d162a204d979658e72ecc. 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/GBMJG2117332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19ca5fdf4bb9f71e7620d6da139db7ea9ec9bcebe850c2da8ca55a64d1bcce6. 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/GBMJG2117333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd04ec7cc247789f54f1f30e318d70c5008a64606a7a70143a9dca2e2f58674. 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/QMBZ92466440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9959eb70bed65d0e2cc48fdf03fc4b9475e82d8b9d60ff3c60f1fa96a1d5291b. 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/QMBZ92466441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8438de6dbb72a7b178ef03b2f437e3473cd5223073c4a277cfb0c6868f2e15. 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/QMBZ92466442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfedbf14adc8c9fa712aff3a6781823d993b1123c9f165ab98836044263a219b. 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/QMBZ92466443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a278d21a1f98c35233d4eaf8e85cdf948dce9e5236ab4aee91a9b37d5cd0fd1. 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/QMBZ92466444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2c58571db97688936ae1fc9f11bfe9422fd324d23e07dcf0a721da987dc571. 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/QMBZ92466445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf373a82370154801f4a509890dcc563dfa9c7ce96b1cdbfa6acf91d910d14bd. 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/QMBZ92466446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2c58571db97688936ae1fc9f11bfe9422fd324d23e07dcf0a721da987dc571. 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/QMBZ92466445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfedbf14adc8c9fa712aff3a6781823d993b1123c9f165ab98836044263a219b. 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/QMBZ92466443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8438de6dbb72a7b178ef03b2f437e3473cd5223073c4a277cfb0c6868f2e15. 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/QMBZ92466442.