Paros (; ; ) is a Greek island in the central Aegean Sea and part of the Cyclades island group. It lies 8 kilometers (5 miles) west of Naxos, separated by a narrow channel and about south-east of Pi
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 0x09053c5a8e2a8725ac1443d91dfef496b9ef329b0112fd67f84efe1afaae0c87. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/184b7d99-16be-42a5-b0c8-f23fbbf5f375.json and https://artists.proofprofile.net/proofs/artist/184b7d99-16be-42a5-b0c8-f23fbbf5f375.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50db3301cbb37a30b05070ea8af501053b30b3e9c66eb26c70221d1056463b89. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWW2334632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dbaee149cb812c8a7b2110517d497467de799790fe57d3bfad7b9dbaa5f455. 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/QZNWW2334633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a47a9f1f9bbc70ffefeb9ac49a224e30d5358ef3c19815d1907e8c73fb342b. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZWFF2375203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c909cb100011203e597ce791f7f889dbd2c3e3c135654692bbcd330233d2ce0. 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/QZDA72407253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a603c6a03aba287d3afb6703f03ef3ec90eea302cebedd9ca42a97fb0ab944. 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/QZDA72407254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b517c2ff84ff4bf5ee908676b61ac84c374bf0909e330c6b77184d5d1c150f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZDA72407255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d133c3bf789ac7f1ef59bc1500b914cc32e305222e4743438aac930365410f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:57:23Z), 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/QZDA72407256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321865757928c9cf192b22546af68bced2b19b6986e41ed2977a8cc357de1791. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZDA72407257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e494b57e6f63907856a7072027e01434389f21b67eb057ffebf8a71428f569a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA72407260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996adf2a44490c95b1e0d2cebf56a74066c8853c166e132a2c476deb39257186. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/QZDA72407261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8420d2c15c4d8e385a563cf686d770a24a7b301e7ae144e3f9041c18285f08ec. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZMEM2434126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67804334209ccfba3a5ed589b9e8a36fbca6c56079e20a7dd19272bb87fb9bce. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:49:00Z), 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/SE6SA2487656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc86362a16e8fc9866d7812efd345b7690d74ef4c7fea6302c62489cdec55f78. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/SE6XY2586656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e8861fb1214ad38eae17315ea7143709efa459580dcc1e263ead15829d874d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE6XY2586657.