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 0xa1e32a2a7fd365aa0ec20ea5ef8891b876d21663bfd0bc011fac6dc6ebaf20eb. 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/5d786012-4665-47b5-8fb2-625bfd6950fb.json and https://artists.proofprofile.net/proofs/artist/5d786012-4665-47b5-8fb2-625bfd6950fb.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 0x5eb47dc2ade9dd62abe7b3a04423fe2ab7ac5073c376cf9bfeaa89878ceeb910. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPO2177244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f8db7a6cb44252967d070398a710d9cd3b1e632ee2a0f95b0f1effda1113d9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPO2177247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6c6580d9db136295c06c8b82b95a600d4a590507b7d8e52be23f58e9dbaa59. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPO2177252.
ASMR-5分で眠れる「認知シャッフル睡眠法」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2371b1b089d86e898e32fb15a2d25e7b3c58b11db46a73c0ca0340a3c3e448. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCJPP2127625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911f089b80ae7fdb9f5a51e5f2e680747635e5fd901b284cae4129f85e2a2603. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPP2127627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456c9210386cbba0caa19e6ff934e9d357dd4a5316fcbd406e1e30e8f479d97f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPP2127628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fb8e96d4c86d0f1623b488eee59091636f3b9fd1b3575cf3ff9a8bf96f83f5. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCJPP2127629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079f5419b88b332b554b0eff0ab3395861bb4e6f5c08861634fd49d973cd47a7. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/TCJPP2127632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e3a0fdbad87c6e703d639b367f77919f884de61b30de7e10c99bef3cb30ab5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPP2127633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732b0b869747c161e537d584bafd59702585a017af5a3e79acd6bdd036f949a6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPP2127650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd582f65221f849fa54f56f2541b63220ecf4bb9643e08d33e82b0dd286d9bb74. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPP2127656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2630af242f424e1cf4462136d52dd5373ea4db8a770ef37a446e9f93b60050b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCJPP2127658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b02dbd713feaa6d179c05bdc6492f6577a2196b913d0317ad04e6c555864e66. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/TCJPP2127659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697ac6739cafdd826380817421f3fedee0d5e51e5141fa495d042d85583b2dfa. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCJPP2127661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6c5677925c5c7bbd34967404e791190f382c12fa58bf0ad0b223da46b688ef. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPP2127662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224bcd0d30cf8bb125b071cc11bada565829627ca71c5c9ab5eaf64866e1d92a. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/TCJPP2127663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bd3651b2c7bfa3fc5c789f2f2b412d96f6b977bb4da3a97a25beb2eced58e3. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/TCJPP2127664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfec9a346920ec1b7b1ebeba0393a253ea0b068efb04afb34dc6f90c261db76d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPP2127665.
ASMR-耳かきでおやすみ (~ダミーヘッドマイクver.~)