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 0xbf0f87df527fb0ffbcce72ed6bb959cf81f2f8ffbe147600d30fa1e524f1ba48. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a22074c6-b9fe-4b6b-bcf3-e6e4171dc977.json and https://artists.proofprofile.net/proofs/artist/a22074c6-b9fe-4b6b-bcf3-e6e4171dc977.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 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 0x8d7f294a1b91aaa7bac3d0bc18f4046a06ed89f592ad896f80a3d6eda86532c9. 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/US39N2310881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e6f89a0b9eeafa1aa4e8fddc40a095938ee451fe11ed08f6918129be390caf. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US39N2310876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6f6c19755000539734f9bd1972007da92defccff9e93ccc81b1fed7aecec0d. 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/US39N2310872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dad04551513007622d6d71266b34276a9f44320ef9420b3e9c819c65f21ccc. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/US39N2310873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cd2c0e85bc9d9fcbb5435af991311ca334c64129c6a587d3ee32f3c4ab7d59. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US39N2310875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52d1a2127fa4df4962d91df8bec24ab87ce23cc17ff2880ebbb5ec0b4524698. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/US39N2310877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5624882c07f3c822460b3730057f0edbd3af6b1e7c8cba5d0de897a00e88b1. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/US39N2310874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5effe9ead482828384a83e16cd173a6f330a7a089e5c6f98cf1e7c30a5eab74f. 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/US39N2310871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc415e621cc719d04dc8d3b993f94297d80b88b3b5be8224225e0893a9228ab1. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZNWU2457382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b0f9dd8e9b48d4bf569a17a003e1a0141bde06e82a555c9c52a34951945448. 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/QM6MZ2120163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0ddb923a943e63ecef7fe7ad6147d0f78cf4b78c9d6d2eabac648df5a69c46. 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/QMFMF2007318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaab28d25b409ac2c6e27e3510cba5dc0bc156c4ce623c0e58b20d1df578bb5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QM4TW2176352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325c2c3eceb9517b81391ef8d2884c6b9e2a7095f38835a485356ca20cc3dfe3. 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/QM4TW2176350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd721d06d03f3991b6215766dc65f8fab384503da5c63f0a13b2b3c5e4d3d00f. 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/QM4TW2176349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29f6b202d670fffe381056ce88c227dfab640cf5f1ef50f57d46246189833f6. 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/QM4TW2176345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe062c87a569e87b694fdb9279ae9adc4108d61a96024d54ef7c95a6c5361cc4b. 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/QM4TW2172479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd138b8f388a7c6e4eec3ae64132cfc26b9bf69689cecab3b9e4ff3b1b38d0fb. 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/QM4TW2172481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65655902e83a94f5dea76755786666ad3e4454f28d4b08b41e3cb90173192fb. 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/QM4TW2172482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a284f65314635a73ecab67078d4b365b85dcb6a169a9cf88eda816ccab34484. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TW2172485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02e53941517bf33e322ef194a2965fea1e396b5360edbce68a6c189be9b71df. 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/QM4TW2172488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefc3dc79bce33d1f79bd156218b1f158ffa6b76dda06d6feda77e5fb78d8346. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM4TW2172490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c32ad013cb8721bae318ddd0e6b996309a67df61fbba4825eef5aabbe5c14f. 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/QZMWW2460573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb1bbefddfa52d891584a86785a9d9df80f67566aff8d64a4e142d79d0d01f3. 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/QZNW72285816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879233f9fd342a861cce42d6f2ae56157f6dba90a5757fe2d7dee59753b6bf22. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/QZNW72285817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922035315c9c0352e9c550d8522b638ef41893814209505359c996d8efb72e35. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZNW72285820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7188a252f67f30a053001dfc8fa3631e083da3e1942a8f5f3e51479c67b753de. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QM4TW2298853.
About Money (Japanese & JB Da Paperchaser Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5697e55d6fc47e1507e67574c1ff9cad004d6b87d053877315b0de47d8e58d7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZNWV2481362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c881638405eedf1fe9655951b881482b597eb8095390d3e94b2949329a25903. 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/QMDA62296625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccb78105f6030d1093859d5298c6da2acea46738aff1dc91f46d145f1403164. 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/GBWUL2071468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd025e694716b970a00900a3adf5a8dcd70220f1483cd1088af7aa9af9b8e498. 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/GBWUL2071469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0a9070de12be5f1a3b2ac276a3f5acd00358bdae72cf60ad0aea1232eb1808. 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/QZNW72285789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06590d0caef19b9db14cb6cd2f7a4978c3e4a52fd18397b99ff6522d99b6db4. 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/QZNW72285790.