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 0xae59af2c2cd42f357344f16fb423b3af33bcb7ba76c0f74d9d96ab925b4893e2. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99d68d09-3bce-4fb3-80ef-ac0400600774.json and https://artists.proofprofile.net/proofs/artist/99d68d09-3bce-4fb3-80ef-ac0400600774.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Serenity: All Is Love All Is Well, All Is Lies All Is Hell
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 0x3146a632a0514cbd27fbdb6f536fcc219a31d90c6b38caaa1f9598de7ed2d8ac. 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/QZNWR2409387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc018c1f057537d428faf049a003c935ec4f4cf0bd25ff77c069841249756e8d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNWR2409388.
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
sensitive artists (anxiety over art like du fu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce04c5b0bd24eacf7bc1eda2ababa9208abd6c233c0acceeeea58e5b53f2f344. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZNWR2409392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cbf98bdb993967c789b49ce17f0aee659a527e0cf8a0ee55d50b98ab31dc8d. 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/QZHNB2342778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7995844e4c1040249a294f0c262865dfedc7ddf8c1f625cce91aad5588a0b917. 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/QZHNB2342787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96b0e2e551a19a44bf586d37573c6fd6b570bded653ede70853dcfe33f32546. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZHNB2342777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481164ce1a0f8aa9ccffbca356c7e60233d47dc5ff7fa81e3f46bfc867794033. 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/QZW9L2272121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019af1083af3ad13abb880e0b2f630abe89214b9c24ae0a34d51890917960e47. 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/US7VG2102979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1556a3379a861832f4bda964f83890b5a240c2551ef8c01056e6947f118873e9. 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/US7VG2102982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a93db9f9f92aa537b735c769497c46331b30138ada757a80deadaa3eb4839d8. 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/US7VG2102983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497b4acf1cacd9922847ee7085b80f7893a445c2f9b7e30208a9c977a79f8338. 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/QZ5AB1964524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d60365513273e2e545432dee9204321b6122680fbccad7841140ea684baa69. 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/QZ5AB1964525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374fe71070f2d1202a58c0d3cce57d20bd5679eee0ae97e4070cef0c3be44b7f. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZ5AB1964526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c4404f39166cef88323a8c4188c2ac5821f6f0ca2fd7bec55bed6ba21c2535. 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/QZGLM2018146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393ce1ec323115c9d612797127931ca11337f34c3c26c3e9a65f20750eff1d2e. 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/QZGLM2018147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91f59448f8e15e940dcde81521922f65e69603c387804ca3c500a81957a51a1. 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/QZGLM2018148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ade00469f47bdb9071534a425ecaab24d237fcada19879f720fcb2991be3c7e. 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/QZDA42028070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ef4db3a3e6a75cfe430f5c19f3c31f1572151ab451557b7d7edc20e9609bb7. 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/QZES51879055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc90420a696d536994f2a497d3fc2108f85023af1b1edbec5536b0d974a978c. 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/QM2PV1852288.
Agar X Vi11ain: The Tapes, Vol. 1 (Agar Collection)