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 0x2a0e38e71db082bec39cc6ba14fbb59e4e375d2129c4df10c6dcb1d02dd29b37. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3270e96e-877e-46fb-abc1-b5cdad57709d.json and https://artists.proofprofile.net/proofs/artist/3270e96e-877e-46fb-abc1-b5cdad57709d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Punky Reggae Party - Rob Smith AKA Rsd - Aotearoa Dub
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 0xd606380929ac5323eeafe6b5e7987551ac64cd450fd1e195563d79dda475e992. 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/DEH262218008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe3ff4026f45611c5c791b84cb71abac663c4c9ffe7da97d54b0d6157ea9052. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEH262117111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4575a820a2cae5ea823e4d6bcf8c492e8e09ce909616f61b62db699b100697. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEH262217703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254905b5f3389753655f3ba6e6351af96d2a6e73368f6cc70c695ca70902b58c. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DEH262116010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27237393c720fc60efa7470dc248a6249b5fe5a5880218eb1c83761b8dce36. 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/DEH262217705.
Easy Riding - Dubvisionist`s Echo Beach Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ad14a43fd93f894702fb8c70f0db371b4b7198357296fce777c926adc3ece3. 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/DEM092000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc240cd58c8d7de18ca243529d9681a74a50b8cf8012f6b5009621993e8da2b43. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEH262217707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bec664f3125dba78aeab2f2fbc71e502e3a548900228f78607607b44c01dae. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEH262217708.
Komm In Mein Haus - Umberto Echo - Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6747842b00fe35dfda47c2a463ca8eb29ca8d0d82ae5e94b5bdf6c597442c0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEH262217709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1539eeec02bdda1124dc3bc64428d6cbd937c680e74fbe59fd26cf2b795210. 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/DEH262217710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa006ebad0f69362251b8b30d95f212b6c42c3386cb49bf2c70af4d5425ea87bf. 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/DEH262217715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87326e3ea127c70c7478ab0949016f26f471bac91c2f911028e27087aa830e90. 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/DEZC62455664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96d21ab169841ff998962ebac8372fdf00a6b43d656faf44628673c6db6bd01. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEZC62455663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ff229f4492b230b361c23c9bf6d50e7c6063b99f9229825d65fab61a73bea3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEH262116301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43ce56b88461d9699e82e8ffded9322bfbbe54e59ff8049957395418e1612f4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEH262116303.
Cumbia Of The Great - Illbilly Hitec Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003a059ef5e2cf8fa3f943ad22ccf255f09db2595c4a8719ac6c17c20aee63dd. 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/DEH262116305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef754aaf4fc1762a9161c74be6e414d0cfe7a01a482940e70c3587b0b8e67a0. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEH262116306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b44c62feef3b3dc64722528172e71624935b5a4aca7834a90c68a33a52d81f0. 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/DEH262116307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf1c87e39eed7f0e8af2baa9a6690296765f9a28b25574f53dd62843012a983. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEZC62402394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315b27154f50910bfd4cfbaaefa6b06c368e6536fb076cd5e9b613b0b4f3996c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZC62265341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0fb4dc9ac8b028194a900004a8207d301ce7e4913f2673d3aa0282d5761a87. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEZC62265342.