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 0x8e8bf9379305bcdf9eac01be127114ed5fdb81db0a12004c45ecfdce28038426. 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/203c55af-8605-4b21-b7f3-375f04366bbf.json and https://artists.proofprofile.net/proofs/artist/203c55af-8605-4b21-b7f3-375f04366bbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Melankhôlia: In Darkness Through The Light
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 0xc03cab91c7ba60bc1c5b8b8961a506f3dbca910a1514f8aefb8aaa051c0d68bd. 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/FRZ132423010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebb875f492e0715c5f9ac54a06cf1909d03982c518ccec0c8c9c925c09c142d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FRZ132423020.
Stay Time a While Thy Flying - Version for Voice, Archlute and Electric Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec01745f4a4d6a8d3b5943f75a6f6f5e82f2782e51aa14dbb02bf65c6ca597d2. 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/FRZ132423030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6bb0f22e2ecfb15be695a76b0f066a284bc96ab0de68c69e7df740ff83ac29. 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/FRZ132423040.
Fairwell, Too Fair - Version for Voice, Archlute and Moog
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420b69238db23d05dfd2b02b6ceefbce91a51f2c3e343c0cb313be42d267d670. 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/FRZ132423050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc56a87587f2deb879d46a53f93cd4a145c4061433b123f87c1ce899b20ccc0. 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/FRZ132423060.
Dear, If You Change - Version for Voice, Archlute and Guitars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e7f25ba0da7234699b2c1a57319fd5963d3727d4f1cf3e2e0c848d4921e66e. 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/FRZ132423070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d94bf7989105734d8126dbd3eaa7042d610a7eba3013ed3a5197e370b271641. 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/FRZ132423080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ad6b447cab1443a65ea71f52d71ab83c425dcc234a59ae5593b050bd0c717f. 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/FRZ132423110.
Die Not Before Thy Day - Version for Voice, Archlute and Electric Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eac884b4f81ca4bcc204d88a2327b675c99a8c1147e912e9c2d8514409fbf3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRZ132423120.
Go Crystal Tears - Version for Voice, Archlute and Mellotron
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd66918a59f63e4f86ca173c3a8ae936884608c3bc3c885195eb87c15820f8b. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/FRZ132423140.
Flow My Tears - Version for Voice and Archlute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ee95d7f4b51056c0d0ceea534cb7dee1fd98ea1842bd7b0247c55beb47dde2. 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/FRZ132423160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd66918a59f63e4f86ca173c3a8ae936884608c3bc3c885195eb87c15820f8b. 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/FRZ132423140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4842dd080dacb85a5cac192c344ba1a07546bd34d71c88901e7be71c785c1fde. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FRZ132423150.
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 0xeeeb0359ecc8da96a7babbc0d903813f57f098ea696a7ccde59b35568ff6dabb. 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/FRZ132423090.
In Darkness Let Me Dwell - Version for Voice, Electric Guitar and Electronics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a8affb3db7740cb84742e15360a8b5061751354eb3e36515207d51d23e3e5a. 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/FRZ132423100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88674f8ccfcb1242509cf9f77dac4336f0b80bd4cb9635f2950aba348eece732. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/FRZ132423130.