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 0xf4739dbcebf3da37aad0ee75cd527f94c59f6d528472a94497e58bebfdf86bb7. 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/94b7760e-c4c6-436a-bc35-38bc931b7e9e.json and https://artists.proofprofile.net/proofs/artist/94b7760e-c4c6-436a-bc35-38bc931b7e9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
if you could see my thoughts, you would see our faces
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 0x331c7ae11a84772e0f359f1bd57a8459f0c8a234421433309dd94a28dea82fd7. 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/CA5KR2361738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646ff4d056c5a7d3f3e4c978a0fbdd36b52ea4e565753ece767e9da92a95be73. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/CA5KR2368169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55017f8406e2a874a3575bdc9eb58eded42cbcbd94b13b58a007178e7542ee7. 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/CA5KR2366351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ae01e1284fbccc186a5302bd2b80a0d9a21f9a6a1abb775e4b5b054bf1178b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/CA5KR2368170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3e46e35043b3a14d0835c643912ab3d007b90efbdd4b901ca432aef57075ea. 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/CA5KR2368171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331c7ae11a84772e0f359f1bd57a8459f0c8a234421433309dd94a28dea82fd7. 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/CA5KR2361738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f4f6ae014b42f8b503d8395312f0a4599559a974c7e14a74e461ef2ba3b2c3. 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/CA5KR2343503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30216faee8cfa14847bc43758c7f612780910afbc8d36eb806bde433c6f0d325. 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/CA5KR2321733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d1157fb54a7c3896f4c4b2510a588f7a629381d6e35308b0f5c69f055b742b. 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/CA5KR2317548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704b111309a6d0e501ca00b8b679514b000dfb76a77d7e22019e122c333833d7. 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/CA5KR2340361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d3a5442d31c6bde00d5a9d9644d1af7b0b8b704b822084d9b60bffb24fbf2a. 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/CA5KR2340541.
lonely nights (pastel lullaby) - sped up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f07f21bcb10e9be5f67cd02e179291f88ededdb97908ab677338d29d2962af. 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/CA5KR2358727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0667aa7ffd572e14405609992d13caaf925504b2fb01b6799f5910bd4c048d0. 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/CA5KR2334720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cffe9ce124b9aa6d878060287007f9667caf6a2a35090c8d7ef400e84ebdb5. 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/CA5KR2319960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ea0f6748681cee1c8818a181813c4a44d385ec05d8ea8293006ed9f70a9cd1. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/CA5KR2363670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbfabf0c264df966ff9ab841b32e8c3690452253026883c8b7e278f16f59164. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CA5KR2361739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f4f6ae014b42f8b503d8395312f0a4599559a974c7e14a74e461ef2ba3b2c3. 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/CA5KR2343503.