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 0x57385ed47d45bb811837e1087465a6f50805363cd6e4d4699b31269d1b405099. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/431d7936-350e-432d-950a-ff8bf2a67900.json and https://artists.proofprofile.net/proofs/artist/431d7936-350e-432d-950a-ff8bf2a67900.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wooden Nickels (The Organic Sessions) [WOJ Deluxe Edition]
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 0xcb1a23e5d9f977da59b10b27c0c2342ced02df0ed0469ba65cca7dd32436fafa. 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/USB8U1047338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927b1806dcefc03a00d4df32b6542a4515a0fbc5b419cf2f522949e43421b305. 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/USB8U1047342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3350216aaa0793f829f4bf7fbf3e21daae04a0e0ee2939350995c3c452bd4dbf. 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/USB8U1047345.
In Bright Mansions Above (arr. K.L. Scott)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b44ae8ca4d31862aef912691a17c60e858745ea6232f4d41d9900e33c35e74. 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/USB8U1047347.
The Heart's Reflection (Music of Daniel Elder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddec5a138ad5cee73f6db2d319b98dbe8e6ee80ddae06e9c6a0428bd808ff2a. 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/USB8U1061772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a0281a475d3520beea0fed0d291c0fc1a3cdedb5f97bdcdd20553c23c2e384. 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/USB8U1061773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912a780683bfaf665a17b92f8e117ce2bed15f1ca4916cf8fa7038ffef00e800. 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/USB8U1061777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969eadc144b93a753843739cf1aba77bbd4ceaf5060b4952772169dc4adc6819. 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/USB8U1061778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d5cbd7a2948bbf3c019e852eb84766237a9164972aa88dfb52f5020ca2499e. 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/USB8U1061779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980f52c1cf3b93ce14bb0488ebdb4832685a1632598e7b438b1af751da4d61e6. 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/USB8U1061780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f35464d31a5a4081bbfba325c43f3524bf4a671046d3f01f9aafbae83a6dd1. 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/USB8U1061782.
3 Themes of Life and Love: No. 1. In Your Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a428cbaab9aca083e39145092eab7c4c62b0193b62eb88fc06e79f87ca20a0. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USB8U1061774.
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
3 Themes of Life and Love: No. 3. Drumsound Rises
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050256c00e43d878caa928e1d82ddbdb24496a3df19b75732bb50bf63b7c8451. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USB8U1061776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f5060c71d9bb1470b76f1e2befbfc84588234b76e89d5c64936c3e0663b718. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USB8U1061781.