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 0x23735e82bca18443ba0df1183cb7fd4d798c5c73afb71c139d8321b5131ac2db. 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/22d57297-9d6e-4bfc-9283-6b35e35d0430.json and https://artists.proofprofile.net/proofs/artist/22d57297-9d6e-4bfc-9283-6b35e35d0430.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 0x4824c8626194df1ecea10fed9488743d93c064c460bf841e39b74424de7e5fc9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SGB502212648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ea4906ef91777a79e14c1739221a79dd24ee99ea5ccede3e652c31b2046904. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/SGB502296397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3226ace900257c220f4bd351cf3eaa42210267cfb25dd5dabd9c8b529309e3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SGB502292736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe832aef5136ba97b9ecaf3d84193b45990249a883df3c14f57e666d2bdeb291a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SGB502335513.
Killer For a Day (Live at New Century Hall)
I Fell In Love With a Talking Head - Live at New Century Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ba5421fd5f35dd9e53a308a8e67eba2e1efdc9ac1d68ecfb17010b9466e979. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBMA22320955.
Billionaire Extraordinaire - Live at New Century Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24aea3333d6080fe42da944aeb2a8380f992107ceba8c97c1a074237b3e61ea. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBMA22320953.
Here's a Story - Live at New Century Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a635def3759cda2d5638735b5d9a513ac0e2d0b3858ef16c4411db9d4978fde. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBMA22320954.
Ode to Britannia - Live at New Century Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc5dd2dc6ea4b4f769ade81e8349d55ab097a11040f4fce6c260f6e7c110e35. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GBMA22320958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5684f221c96948bc2ea1d87ded8a2f7720949dd33922edce0931639350c022c5. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBMA22320956.
Terms And Conditions - Live at New Century Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd01b2c01df6cedf59aea54391b6fa916e153397d8ed86e667222d952bfb7fe. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBMA22320959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f72ba532d7d715d8431d20fca367113df3f17abe2746d2dbbb50d95045ef43e. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/GB8MX2400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33c1fdab3f8fabd5d3c832e739563e7abd6e9006abd881443fc40665b142215. 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/GB8MX2400321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f72ba532d7d715d8431d20fca367113df3f17abe2746d2dbbb50d95045ef43e. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/GB8MX2400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5179a7ee495da3730d137075a22aafc70888c10d1e070f503d4af66374d31beb. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/GB8MX2400521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f72ba532d7d715d8431d20fca367113df3f17abe2746d2dbbb50d95045ef43e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GB8MX2400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f5a122f05de3345cb9b9b0fb969d57d13af5ecc76281371d07198d6a5efb47. 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/GXHND2501519.