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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c49761126207bedffc778ca0981f989170651ca0ed058acfbc6d62e5ec967. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/364bce7e-4886-44e8-8bef-72002a1aaa0a.json and https://artists.proofprofile.net/proofs/artist/364bce7e-4886-44e8-8bef-72002a1aaa0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spare Change (Acoustic Live Session at Rode Hert Studios)
Love on Wheels - Live at Rode Hert Studios
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd0269ef50bce4e3cfdd0d15f41fd5e1e8de3146cba9ed39dfc4e02030c1ede. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLL6R2412434.
Don´t let me be - Live at Rode Hert Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bb0f760ba66b85535532dfc39bd29f736b93d789ab0f32f293deac5e32b081. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLL6R2412436.
Spare Change - Live at Rode Hert Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d68e0aff2f45b4aafb4369830d46055220ce834d663ff34425c8627e6753b8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLL6R2412433.
From Blue to Black - Live at Rode Hert Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322ede0d5ff0900b63ee4b3ed225a1990ed3aadecd296a2c76b1c43688fb7969. 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/NLL6R2412437.
Northern Gals - Live at Rode Hert Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b050e2ab3b529b68e6075a9d8130d6659756e2a2b0ba0cef4475520018501c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLL6R2412438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb14c32cb9c2e0bf6d1ef5dcd0f90082642581fe170034107e2c48a5f177876e. 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/NLL6R2412439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71407dc52fe3340ee273f03f0b34e82642dfa6132cb56a2db10e096315c91309. 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/NL4GR2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e79c425ff812d11e19c2da056afc4c9c11b8c9bf4dcb7824ba0956b06c16e9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL4GR2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241675b99375f88ca133cdf5d251d0b7952f3a43b6d6687c8942f31cd7a2d5ab. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NL4GR2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ab7858b0ad99707fcbbb8fe885095b78f6b4c5b32ec17b94bebbe21208cc70. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL4GR2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58122cdd467e20c4c7d4547dc0336e81aaf4c9ba8d575033addc01b79aee154. 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/NL4GR2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd652d4557b1d49594d7f310c00a63d08f7c2a874727fe0a2299163381055f9d. 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/NL4GR2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc3e0a804e4b035f0cca834f193bc8e2f25e284821b6d894d5cbdcf44f207db. 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/NL4GR2300010.
Love on Wheels (Live at Rode Hert Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd0269ef50bce4e3cfdd0d15f41fd5e1e8de3146cba9ed39dfc4e02030c1ede. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLL6R2412434.
Spare Change (Live at Rode Hert Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d68e0aff2f45b4aafb4369830d46055220ce834d663ff34425c8627e6753b8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLL6R2412433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e79c425ff812d11e19c2da056afc4c9c11b8c9bf4dcb7824ba0956b06c16e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NL4GR2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71407dc52fe3340ee273f03f0b34e82642dfa6132cb56a2db10e096315c91309. 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/NL4GR2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58122cdd467e20c4c7d4547dc0336e81aaf4c9ba8d575033addc01b79aee154. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4GR2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241675b99375f88ca133cdf5d251d0b7952f3a43b6d6687c8942f31cd7a2d5ab. 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/NL4GR2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d34c82898c68246ce8175be443f92592e7311d2b25d08ea601b52ba2b68a0f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL4GR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1351914c3deec693a1061f241eb08e01efbf5eac8023cd0ecfc04e27bc87205a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM22085342.