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 0x8c2fdd0048b1643575f8e75e7a88649b7b6985e0cba05112f9ee5d3dde9ba3ae. 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/eb22c937-f74f-4c1d-93fd-ae522f6dcb01.json and https://artists.proofprofile.net/proofs/artist/eb22c937-f74f-4c1d-93fd-ae522f6dcb01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Neon Nights: 30 Years of Heaven & Hell (Live at Wacken)
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 0x5fc09acdde17b5739a420bbe91896e961266a8d3cdcefb7a40613dc7c18db944. 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/GBCBR1000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bfe699a69ae990fb14311c66491bf91df729f9c6c4b7ae5b27e0d16f4ebe86. 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/GBCBR1000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a49211a7254b59dc4f3596f7c6bca21b10cc092f8ea8d86fe216b427b90608. 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/GBCBR1000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99d5b3728d511df2cf8a481ca49581fdf07d6e5158a01375e982b0ab8611876. 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/GBCBR1000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd684fdccb534b86f27243397ad80f72354fb107db5b6450b93f8f73ad19b73a8. 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/GBCBR1000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc3d5ad729ee90d541e70ffc11dcd2fd62a84dd548df7b0ebf732270d45ac64. 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/USRH10901695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0af0efa80208f58597cf59a5865f999414c02ca71ca6b28af473e7d29ee28d4. 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/USRH10901696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ee698f6999c15b188f9c9662f29887d26743462bc505f8f267b37f80de3833. 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/USRH10901698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ee5ff41c246beabc6f1b42638d49fb69bee8f3a0747d5e21f5fd2a748985f8. 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/USRH10901699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b1eb7f8f651aab1527e5924f2a79e16a9ab764ef3b8c063c3fea687d6e5b2a. 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/USRH10901700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f437683fa3f9cb4ab79e7af45e321cc3de7ac5d14ed84acbc05d2e6e394fd76. 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/USRH10901701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86ecf6744fe13955edd9a8784d1fcfe2a68e71cc70d7b5c9e771a7b1148f9a3. 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/USRH10901703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ca19334ff7b4e1351706d6224e33467c8bda4c5c37416c7edbb6c470ddbaa1. 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/USRH10901704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0b25d3457ea3eaf8b10fc723ae3a544f72833be8cc4c4436833a4ccc16eb08. 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/USRH10901712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b710c4737e426330a6a7ab8cd1cfcf9e681ac00b462ea0f49d14b7166c28ee. 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/USRH10721975.
The Sign of the Southern Cross - Live from Radio City Music Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35be48bee12622b26f0bc89f5c05989a0b09721aadbef97e94ef9c99d7f81b9. 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/USRH10721976.