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 0x121813d5b959259423b7dcbbd5b5ef2c345e9e1c98816c142e6b06507cebcb06. 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/8b96c236-9daa-4b03-b87f-6a5f3067bde9.json and https://artists.proofprofile.net/proofs/artist/8b96c236-9daa-4b03-b87f-6a5f3067bde9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Woke Up and Asked Siri How I'm Gonna Die
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 0x3fb6105ea25b7c400c9ff598e8be15a63e8ad3a7822e92941feee548548cdf20. 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/USFP13782401.
The Flexible Unreliability Of Time & Memory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a714c0901f130bdf47cf259a0dbf18e01a55dd6ba6f644ba07a65df3f67418. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFP13782403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0627fd9707cf3f9f6ee195ea1d6cf8485abb79af9cf20e5fdc216615dcc652. 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/USFP13782404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d219018b52a168190929c67ab0f8ca1cf75fcb315bcf07eb15e1b46da642a3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFP13782405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03274a75ac8dac0ce2234ba548e1273449ef8d150cfdfe7e63e6a5a1d3f3ea54. 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/USFP13782407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a82b8620e814c1ba6a978e5289f33c8b7b05428c41bb038724761a06420478. 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/USFP13782409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9d60e49e0483db54d9f2d40aed89524bf663770bd06bd98200843c4355c389. 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/USFP13782410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cb73f23c7845a5b023c3234fe4adef08be885d0b4203c33e6eb61f7b9c4f70. 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/USFP13782411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ef3b07ea3e7fb12ba2ce35e2198ce147c8b3e687d9748a8d3fb88d80e8db8d. 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/USFP13782412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9a9c70d1b971a9456b987ad9287faa944b9e3ab60544f9687fcf99ae2fbc90. 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/USFP13782413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90e9fcca898df37fd1bff24d8e0ddf7d430efa018e7b7f823bf1d0a14fbb96b. 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/USFP13782414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871d32f5ca11d596ef86a1b48c12c3235350a5c0f266b2142ae5c4cb43c990fd. 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/USFP13782415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b53375a7a7cbb96f1a9757fadb1b13b979545781d869bb78fe5a293a504d82. 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/USFP13782416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00692f70c157a73505f60a765e94b2ed7d1156cc3ed6a7ad7e2b7b8751ab540b. 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/QM6MZ2229295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6448e5c195a78dc07234906ecb0d7235879948b5c9bae228b6568da33e57de45. 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/US25X1801219.
We Out of Here (feat. E L U C I D & Gudda Vell)