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 0x6d952c90cdc1de0d7613fd7cc70d7c8e8040dbf8401b077d9f016451cc705dee. 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/049879d9-6bb5-4247-baee-f4aad1ade6bc.json and https://artists.proofprofile.net/proofs/artist/049879d9-6bb5-4247-baee-f4aad1ade6bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
เพียงอยากให้เธอรู้ (you know?)
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 0xc4fa6dded1395435d847f37789799786a7724b082844b739662646f979113d07. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX202354424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16d6dd4d110b94ac72d31bad1d25065a032998b02eb9f5259dcc2c0fa100be9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FRX762365853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb749d485be3fe85e65377c1519513b0e9a8c0cc337bf3dfcb3dae61d51c16c. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DGA052395514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58b8798b02147fe01e9c12dae3287f880e51f1ca90635488ca819e5a486ff72. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/DGA072386295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c43685b9125d1d816cb24d70f2a3ca343a6a402878f48c0d9d4e55d9d52f86. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRX202496374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786de378d5274a504ed93992b9501c29d16c4a056af3973819ef4e0e11e94f54. 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/DGA072462411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e169ac17e65e0e66b89e19b8a5e19c6c92ce6109425cfb70a80bf8c2d227673. 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/DGA092496022.
แค่อยากให้กลับมา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d997e2900a5e2137f7943dbb49659fe13cac1b8d0034acafcadf2b9a6d4ff0. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/DGA0L2427073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce76587bc0aaad3fdb6a6ef9c09804af9403613733b5ec24751f674f8fc76cf. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FR10S2521037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388e02eb6d30beb45493785d7415b1e151da56ae45b1c310544820f180298386. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR59R2513061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab5456ca89a10507ba4c4bc9774847af4f25c407734f3d07d547aac9b7e1734. 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/FRX872517582.