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 0xd9aabb66d986d8518b06cc79ecb42ed06ca7b61aabf48541da1752007db90083. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29625bcc-c264-4c5f-aed2-01efc3b199e9.json and https://artists.proofprofile.net/proofs/artist/29625bcc-c264-4c5f-aed2-01efc3b199e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Slide (with Burleson, Oykie & C.Smoke) [Hosted by 4shobangers]
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 0xde390afc6f0e4298bc8503d501ec4e850af6be0d545e2c5a4d01fa717b8a0690. 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/NL6CS2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb519f7005bb4abe2e2be3f7a5a5b4eb84e544d70a51a835cdf5e35be8bd178bc. 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/NL5HJ2400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7157b503d58501d5bc32f26e129268ef2b2bf0c5249a0c648acb46ac0ba34c6. 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/FR9W12364395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7157b503d58501d5bc32f26e129268ef2b2bf0c5249a0c648acb46ac0ba34c6. 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/FR9W12364395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbbdba9af916044b15b0b8586dc386c4c749d0136467188c56e446e2622cf50. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAGF2235461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f059d1bf7efa4e39d8513d834201ed24dcebc6a392348978dab1f6d420a710. 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/QZK6K2257448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e160dcc6bcf74bceb84a9ce4d5701e0025be7d5963d0d7a57b09fe129f1182f. 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/NLCK42500554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd1fb95dfd7d69665363dd079bfe6afb77be96b6626b36b5f5ced769f900c96. 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/NL5HJ2400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac83b53d72dd2c234093fa289a7d6a8be4a42ce6939abeb70656d3ffdee4b6c. 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/NL5HJ2400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0d3a057ad9a08b16166681e8ea912cbfdc3ab1605d4a81ba0d18dd0bc721c2. 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/NL5HJ2400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd1fb95dfd7d69665363dd079bfe6afb77be96b6626b36b5f5ced769f900c96. 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/NL5HJ2400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac83b53d72dd2c234093fa289a7d6a8be4a42ce6939abeb70656d3ffdee4b6c. 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/NL5HJ2400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0d3a057ad9a08b16166681e8ea912cbfdc3ab1605d4a81ba0d18dd0bc721c2. 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/NL5HJ2400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f5ae2004686bb8b433ea35dc090ed56f0ebfb30437af4cc13c0ad6d7e0b590. 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/QZMEM2256763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2c59f738c3dd255443ead0ba48cd10f55429ee71738e2f204800c24aae3caa. 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/NLUS32300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fbb5e61e6c910e8f9531cb496cbd43f41a4049e6de38c09bbb238aaec2bdc7. 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/NLX1N2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb264e5dd964b98aa780f190677ff2f640a8cb481ce7dade1c9dc810236026bde. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAIX2434928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085c066ac339a8c553b20ac5362bb1c69d6f47541900dfa1c4c068c42d7cd889. 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/NLUS32300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd1fb95dfd7d69665363dd079bfe6afb77be96b6626b36b5f5ced769f900c96. 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/NL5HJ2400150.