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 0x07467b4cede291eeb8be517db5f9a1ffabaaa3d3be3856664a1c88bd0f7dbfce. 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/041f08b2-9a5f-48e6-8cad-1d93a1087088.json and https://artists.proofprofile.net/proofs/artist/041f08b2-9a5f-48e6-8cad-1d93a1087088.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 0xc03b9ad5c7a74d178de11ec928d309bc68afbd1927fc6646b417549d3b9de2b3. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QM6N22093016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f45e932eae074a00c479c635f9b738b1bd01faf2328f397c2ee981523a36e79. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QM6N22093017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8114e6e975dfdbc500742d1e0878addeb44fb117162dfebf0611a09d7cf0076. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM6N22093018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adcc7e1ede785abafc2f59dc4756c7d118bcbab8cd6966fb09dc4d17781f99a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM6N22093019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f5ba54ce88b8c83dfb671c89cd5c3f95c7e26b760860a79dc941dca2fe48c2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QM6N22093021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb563ee83aa40474e5a4f4ce00970f5ab3a84202b622954c5c32dfa86ae3ee87. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM6N22093022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcd5cf07c089a7ce7165a8ea81370395d8a3246276c328c3907237926e93475. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FRX201724982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31ce4e5ac9c2edd579a0fc3de5e64d30a637a4934321a4285456b831ed02ac3. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FRX201724983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db2f90b8d5cc372639fddf09682091270b8a3e6b8e1c47e3efc5e9e25e9f360. 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/FRX201724985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77259397aadb2aa96733f5a4bcd5544a1d3178938bbdc91b49330ecbe671249a. 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/FRX201724986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c26180f31028d922d634fa1ede286e8430181332f350b708acf2d81dce6494d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FRX201724987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc9a51981b7d2124a6a9c1c0c9b5a69cf895a6b2fd686d9bab6629fb6401811. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FRX201724990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb23b266edad2c14b63ae4ba900b61f08bbfc629c519ed95b9c27bd95f4b9bed. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FRX201724992.
Όταν ο Διάδρομος Ρουφήξει τα Παιχνίδια μου
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517ebb6a05841ff3f858beb454c65485d15b1195f908fc997e348c4b0c907e94. 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/FRX201724995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3c763e9784be4b14f4245435519668a256defb14979809656fa0dd9e162d91. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/GRTC10900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c2c282f57bdfd3ed871ad07ced759456611a3f8ebb535b755040cc37ca8ffc. 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/GRTC10900034.
Πρωινή Διερώτηση (Για Να Μην Κάθομαι Άνεργος)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb312ea403a8e589e8d1f90269647d4bfcc6d4c616d7a50a23c9788db3e07ad3d. 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/GRTC10900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f101b68cc891512c39630f61bbb22359e2380bfdceda57babc810977241a33. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GRTC10900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fe1eb7bb41ed725d1e92e8a64d4ca4e00978455872fbb0957cf878e27d7398. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GRTC10900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4ca672afcc7b5c589b2785f532b193984c2504c0c577b8545f92a9d720e19e. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GRTC10900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eab18b4631fbf01534609f42d5c755cd4bc8f6ab87875d2808ad251b789ac70. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GRTC10900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f53c5a5757fe9343494d88e3ee0a90ac5b04b29cedeb6fb3ae3049bf91432f. 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/GRTC10900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b913e27da9b94ef7d3a8d71619576bc8e639da4c4203a0f12c7bb5cce0b36c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GRTC10900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5e049b459e6d6d80a04b3614194e675120296f99080c4bdc8947cef8cb1672. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GRIN11300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b1746e24bfc3c9038398cb741b1ea06c557fada32fd619f54161a792961edb. 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/GRIN11300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40b98002d81e941234a9d847dd4184a82c6c5add34c36d404a1b66ba4946d2d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GRIN11300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f2aefb21137b19be321d1b3e2c248cc3a84bcbb9d639bbb31cd7cddac2a17b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GRIN11300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dde8cde7a6279b31dd3ed5137ee549d5dd827a6a975479041d41fda700153c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GRIN11300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79e4ca35c6364a7e568fe22cd4e4c9075586beee6e493395f8ed8bea174c2f8. 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/GRIN11300038.