thumb|upright=1.25|Jason, between the jaws of the dragon which guards the Golden Fleece, is saved by Athena. The fleece hangs from a tree behind them. Attic kylix, 480–470 BC, attributed to Douris.Vat
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 0x0cf73b92be9d1ee99373a23498a4141fe7e9f479146e1a3cf33e86bd83fc11dc. 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/090f842b-a3e6-48ce-98df-698a421ed743.json and https://artists.proofprofile.net/proofs/artist/090f842b-a3e6-48ce-98df-698a421ed743.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 0x140cbacde6bafba2477eb83818fdd908cfbd1ac174e4f8a6d62d86d4252a0b43. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLAR20929349.
chance is a element (Instrumental Version)
มีความสุขมากๆนะคะคนเก่งของเค้า(speed up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170c3ab87d8d1ce5cb26e9d54e262dc50f68632bfddf7e45a81cf8a09edb624f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEQ020502025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a1cc367889a303ac8cb7f53260002f0f6002e63f5d7d1930f8260e0a3b2c71. 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/DEQ020502026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5b1f0f59dbe521250f72ee9f752282a69a808d14a560aa6fc79c803efb8307. 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/DEQ020502027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfd70a7c42b090b653952a46fc0851f7d9d9cfacb87a2db2ee0f816434d4b0e. 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/DEQ020502028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d7b947b84dd5ed75457f48bdf519226becc76b0546b883ed1f571909ebffbf. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/DEQ020502029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781a614e3a68f152489b0bf67af7b9e509db9665a61f184d348ec95cc9634f6a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEQ020502030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc24742c7c05488bf2d1cbc5fcf3e073c3e9bfc4ef41f9eaf86197015acab3a. 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/DEQ020502031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e92961ac69297ae7c63699570404277f29ef346dc3cc5d8cb5227edf2181480. 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/DEQ020502032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623f86734f470d8992a496ba0987cd701c363343cdfd2552818e50f5e04cd43a. 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/DEQ020502033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b81b771c6a00ec937c45a2644e0ac785778f8424814a659c76556cd4150938. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEQ020502034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2751ccdea3e27f26a45bfac96b689cf99a552d38cb54f6b6ee71b3baeae2cbcb. 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/DEQ020502035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e013e52bf16d4e2f85e85b43da2e3a079c3e848eabf1cb88aa411e916916be. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEQ020502036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50196ff6b7b44ce10ce890b68d06be401651d3604922c9452f1a33ee4d74921b. 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/DEQ020502037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466e7f02e20cb2c308b349c07bc8c10a5df751e0984af409edd3100d8f7dfc18. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEQ020502039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d57efca5ca70e72d1d8f1dec043f7ace956a49a3d404be30a1b4b057e6c54e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEQ020502040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe322b7b7b7ca09a8e2bd544671ec9a95eee81f5e9a71fd6419ebbbd74bcea9a3. 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/DEQ020502041.