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 0x50031a64159830b9e125186e9a12f79c93b7b0f3dbc5852aeba6b9f96bf9e312. 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/07c5f739-9419-4734-a3bb-70a2e830be41.json and https://artists.proofprofile.net/proofs/artist/07c5f739-9419-4734-a3bb-70a2e830be41.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 0xc0eb944044d34fc07f7f6d69a3a1121b9466ed67b961b3823e15c9299843839f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/SEYOK1836684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074f2fc0fc8a979da169b68c470e49c4c6852386452b334a8fb166cffd06c01c. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/SEYOK1836685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e14442aac7dda13b354638788605f02f10af1c80eb39fc0a7804b2c3d4571ac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SEYOK1853795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6274c9a6e9551b73e228151a8d44521d089dff6f10ba5673cf1bfc85a243f09d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SEYOK1853796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6697afdaddb7a031e525d3238b316949bf1b83cc1817805b0b7d7cd31e4b30bd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/SEYOK1853797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5989bfe3a0f41e1526dde1990bc9347cd162249106db6b074458343a6a8ddf2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEYOK1950366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c436e7be8d96712018a4d74e15010dbfd7313a005b6b7dda4681e8d2023d4f3. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/SEYOK2006821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9712a5c64301ffbfe12dad9c0d7efabd8e5cb9dc9b45b1fc6d4dd57d8f7f66. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEYOK2006823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa747e9459338c275da3f250acb1240444f7ec685f4165da68b03f5d9506290ca. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEYOK2006824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaec8bc78180ca1d9b8e0e1d2984978d2d6dfdce25ed6dc288afa0d6c4287ab. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEYOK2006826.
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 0x6cb55faec41ebbb254734ff447343655cd77f182e4b3c095a8e3b53f835d8feb. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCAFA2048727.