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 0x3793d5502719a200aea278c1f46986459a7ef57c295236f5d6055011ece46252. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24db42cc-f196-46c2-86eb-163853ae0242.json and https://artists.proofprofile.net/proofs/artist/24db42cc-f196-46c2-86eb-163853ae0242.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d516d97965f01c60d43025ab6f528e2aede4c3845f5268fdc6bc218dde9c93. 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/UKXN22523754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594e207af84339e44cd7b738a588432fa49baabd40f4f264444fe098d33e8c57. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UKXN22523755.
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 0x0d8d030eaa9f7db8bc4d68c1b53ed45e23457058e475d5332e50ad9b374f5dc6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/UKXN22523756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cf6441b05c4329fe62e24b292e60e6e0f1f955e5cf832bd6aa545018c15fb8. 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/GXF9Q2556352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b96adfa80e56c889ca5d75f05c1d87fa0b3c3a8c95182b8c7efac75ea8987e2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GXF9Q2556354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b997a1526ddfaff41740616a0c15e9c58affc029be319f02e80d3414289eb3. 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/GXF9Q2556364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf1b32b39b422e1561034925a220e5f94525b505375bdea5a5ea704ab22039b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GXF9Q2556353.
The Fear of Blood Tends to Create Fear for the Flesh
My Head to the Ground into My Last Journey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c7515037111ed0e802e6a5c57818bf253d925aa5c046a16604e5c548c92b11. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBMA22498203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59caa7b2b44105673c9a05e2b510cbc46657531ab978297e633c5750da666959. 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/GBMA22498204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc862b396b34c215ea2b1a673258bccb40092aa86b1b52c20b4d58ad55641c489. 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/GBMA22498205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a1f9cf6b4a83d929b4645c2ddf87e64a20a90e58bfacbb9b218d181e54640d. 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/GBMA22498216.
Immortality of Pain, Inmorality of Faith
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605470c36ed8b01b280e2526791362cc00a2e59923cf69f4793805e924fe97a8. 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/GBMA22498219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6a822e19acd8c853220867120c73678bda52d53198ea308af225db0845c86f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBMA22498209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e90a2b8f44c1c08e24a8f1b130356f5458bfd48758d94d09aabb5deedebe6. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBMA22498210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266480bc686fce596f820baaaf104dce99897bea2d5c4aa9468dd3662a250d83. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBMA22498212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736af0c929a1a29d7b5bea112eb328ee2f4ef6eb34b73af6fe18b7bdb347f19d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBMA22498213.
Quantum Jazz of the Starry Night in Moonlight
Fractured Resonance: a Symphony of Chaos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde61068a81bfb429d3ff8f747c57c975a3b2bfac4f0775e3087ac0cc34c99a81. 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/GX3Q92499021.
When Sadness Speaks in Acid Trip, Says Melancholy Thuth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07acf84b35439ee67f6a72aebbc37a577e9dc04cf1825d67544415e17303629. 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/UKXN22415439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7a751eab89acdd0ceebdc32b7b975a50ac5460890fb6ab45c3bf68f3d4a7f8. 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/GX53U2019288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b89590a1f63620f91ed1182a69887bb63e1a13fe3681ae574b3bc8eb0c6446. 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/TCAEX2069003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97041e1b7cd813aaf3114e344ad7274b8c11638b8508188f8ff2b5f6fd22bab. 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/UKXN22567617.