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 0x3abad27ace7f54b1be2429eca1c1bc55c278d09c4349280649c46446d11b7f86. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ed6ade0-784e-4c9f-a619-e92cd5e9e97d.json and https://artists.proofprofile.net/proofs/artist/2ed6ade0-784e-4c9f-a619-e92cd5e9e97d.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 0x19996d52444e69c4540a8b1b6d5c01fe2e011a9d099c0217ad25d78245850d21. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/IEHCS1200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a610d88a15c3702e7e6d5c4d66db497b3ff55e1215d45a936f98cd6fbfb9cc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IEHCS1200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c8ea51e8a6be1a3f8b72bb75743773ab12761db7d613efa59c53f942fdf9ad. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IEHCS1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe880cdd824c89fdb7dfc8d2e58cecd275bdd26ad187292e2c9c441b39d20d1f0. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/IEHCS1200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df75dff46f35d566747fab9ddc42b5bb26409f5cd18a49f0fba6c2c2da359ad. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/IEHCS1200055.
Sean Tyrrell: Man for Galway - The Best of Sean Tyrrell
Man for Galway: The Best of Sean Tyrrell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b8cd4ddb2c550347e3a893287fe4bf9a60e8314076c64f931a4c661915b99d. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBCKG0800930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4213f6a5ec954403219d516f2440b0bcc38ac8ed04b99b4b77bb35b295057728. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBCKG0800931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a0a8b0e29b78bd617cd3b544630461d0638d7727c5b56d4ae72a583e5316f7. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBCKG0800932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f89e2f39548e4f221b09aed033ef8bb535fb01df3f1a2f100c6f964f973d07. 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/GBCKG0800933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5beae31e99f1ae27ab0df36200ddfd5b0faff37efe2dad3cbe5470aa9a9390. 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/GBCKG0800934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4b62f31aaeb11f03037784b34cffe9f451a58072376964cb912945f606128e. 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/GBCKG0800935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6304b1bce7c404109b70e1bf8e4282d175b1847be4b01e7663cb464f1a4cec4f. 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/GBCKG0800936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a0e27d3cb6f80d2920c356b9ef47e62468670427d8efbdfae21f142ca00fe9. 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/GBCKG0800937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde67498a80d1a39e5cc74acff67df4cec73fd0334f5f958d0cc7f5ac17018661. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBCKG0800938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe175ff033d813f81bce419463feec2f2597cdd9a491cc45e4bd1235b3e7323a9. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBCKG0800939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9f9cbca760b99043b7ef28487058df1b39edf9e8f9520fb2de35fb92b51860. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBCKG0800940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e27aebd0e868b90c410fa509cfca2223a6e4f49609702e5fc3d5f59712f9b8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBCKG0800941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdd31870d454b2d54a98c40096997e6364d457b6d101d38fa4b2b71e09c6705. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBCKG0800942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32adbe7bf04145fb7fc2711a26370702d1e3625b62d6b55b57b1b45b2eccffd1. 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/GBCKG0800943.