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 0x2f6846e71bc596b16623c61ee1fe711416e2f6ef50fcf46d61048727269bfab5. 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/b6400172-c3a3-4b3d-8ac2-683ebcf9d832.json and https://artists.proofprofile.net/proofs/artist/b6400172-c3a3-4b3d-8ac2-683ebcf9d832.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
金色黎明 (網易《陰陽師》手遊SSR階式神 瀧 角色主題曲)
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 0x558a4cea417341ce1c6df14de056fb2d8c66db5d4c09cac41730fc77ccd816a6. 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/TWCG52499992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629416c7bc36844ea937cb5dede3f66047cf4f128e379252da076e68ad84602d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWCG52499991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86a6f4c4aae26dce384e1ace4c683869584bdcfc32d1618fc84d6b8e5b97bff. 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/TWCG52499990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75b3e3888331c6f621330bac3427cf8dfc80a326bb9d1f13a6f91fd18d85b24. 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/TWCG52399913.
不見 (両想い) [手遊《陰陽師: SSR階式神夢不見岳》角色主題曲]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9b3c056bdcf4e8ec47b13608d9eab17376e2e738d30e7e7cf935f6610e63e7. 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/TWCG52299968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae16f17876dc94d430c76989983a7019049e672cf69cf7de2f17093a9c01108. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TWCG52299971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6651b7bbe6604ebde895f333d7cc0d6334508213097a97b75b52dc891a26b5d4. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/TWCG52099709.
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 0x0070d81a61e095e105dadc93254adb5b1e72cc483dda2941f537a2bc01adf9fd. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/TWCG52399909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1ef463b0d5874d08e9a2cc81b876663c03f9bfa98c472c81dc08ca1ebde00a. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/TWCG52399910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb915e16db46c02621418be1f7fc3719dc0ec1fb83467aae88ee10a17c1c16331. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/TWCG52399911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb9756de43d2a46bd4743f0cd20e22e9e48cd482c617a8bc80ddf08ca44c422. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TWCG52399912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758c44787dd4ec122ea8db332eca4e679b9058806da2f17c05d3d965ed605f3b. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TWCG52399914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954d5d2dc82420697f22c41c4d857d81b0eef5fd264dae4efd82d91d6058e1b2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWCG52399915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f5bcb159158ff0641d10160d56aaecb9fca698fbc163fef0616235fcad0e54. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/TWCG52299970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886dc44cf310e9f2bf268356910b212b03aecec6d1b6276a2d72cb641b842b29. 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/TWCG52299972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9565fe93201478c349bc8b3455ab996707bd0dd21549dd20bf7b2276614baa. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TWCG52299974.