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 0xecc963edcc203ad8d19549d503c3c1845a5e397775b0cf2de7061ca87b45624e. 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/fefcb768-cdf9-48ea-8655-3fb01922448f.json and https://artists.proofprofile.net/proofs/artist/fefcb768-cdf9-48ea-8655-3fb01922448f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
RESIDENT EVIL VILLAGE ORIGINAL SOUNDTRACK
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 0x7dc3f4f71557006f86e66c81a6c9a514ccba8cd58da4d38b3f3291e7d77eac48. 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/JPE102101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2653e034c27c0aa129446a0e78da9e158b9bcd71160d87b43b9c7f84b78e2c. 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/JPE102101020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d32ae40cc2196d0130794bed96f3f2c6bf576b22a20b0c3e5cd00705a2b9f25. 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/JPE102101030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d449cca9cb01fb9aa566d8278d5a77dd473ea394fe3ef48ab025fa04f6de6cc. 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/JPE102101040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6296ce900596fb91f55651c71e7a59477d18ca83947261046b4dbc52aae3dfe9. 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/JPE102101050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d4da1865916bb1a74079a300599ff2e08118f12eafde88d64d7490d03e9dc8. 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/JPE102101060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082b5e4c712efbdd16d2c623e8d9ee95b648d188b5d0c80105b4952cef30ef4f. 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/JPE102101070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03e2126d7d752dae69203fb278cfbb92824cedf9be5137abed8f2955d78e7e0. 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/JPE102101080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad304ae50b1fdbc0f9c8dde9c8a38532bf1f07b2b9e16305d61422ae062cf1d5. 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/JPE102101090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5653b91425225809f1a5117dc87e9545f8a2f226984064acb14309b2cb1c9ace. 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/JPE102101100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf821a3dfc26430bc64aff967aa402368f11c52689a277f4b4861707afedbbe4c. 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/JPE102101110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f02428c4ba806f7110f347abd14e43bdf18b08b82a21a058281199295cb17b5. 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/JPE102101120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4dbe476bd69bc918cf44a3c5d546332a664d780c4f06296002a564c38ca99b. 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/JPE102101130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9a9187befe68357644412a479f1e7969225fbae2d0f9815283a3228713435e. 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/JPE102101140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625aac9ffe48807d1211748eb95cf32b61362276f6810e43cc5231540b5ad659. 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/JPE102101150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eabc41d4f4d010108fd97f92788ccabdb20701d6bbbbb6a90140f79887e4fb. 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/JPE102101160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d85d005bc53e2847c66fea9c1debef1402e0ad14256d976fc1834ff4202fe. 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/JPE102101170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e800c6b7729fed19dc8e07f465bbfa5636fdd629c38e2de9af98df80a27fe9. 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/JPE102101180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681e9d1736dccb8c81a6324c7137572f0b2c9796d3dac7f238edf7e11bfd5155. 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/JPE102101190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70ea6b482dbb0c6d3a96b4955355bcac70f14ebdf918007a8b9b365e20936a3. 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/JPE102101200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c52259cfd4bb12d103748cd388f2c8430c7e80500d9c068279c27530bc94bf. 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/JPE102101210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6ee329b5e2e16f6b412eddd699b502d81899524f3e2213b78ed86fd4a5f52a. 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/JPE102101220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0d437a567f405b37d1ba28c3112bb0b6c30dead9e12d318c2fbb9c09778b39. 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/JPE102101230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191139498795d874043b6f6f3a62b8c178dcd32fe7ea8a3a01692c81f4da0da0. 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/JPE102101240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3310398da0d930bf02e613151f3bb6112667cdfcb3d133d17e2ad786d4db52. 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/JPE102101250.