thumb|Time Clipping Cupid's Wings (1694), by Pierre Mignard Chronos (; ; , Modern Greek: ), also spelled Chronus, is a personification of time in Greek mythology, who is also discussed in pre-Socratic
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 0xa4c12bbf0643875469ddf69474d8be18f4e928c19299603c2f845a9d2aa8679e. 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/36ce9779-9f79-4f35-b883-69a23cef3d7d.json and https://artists.proofprofile.net/proofs/artist/36ce9779-9f79-4f35-b883-69a23cef3d7d.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 0x96e76d457656c9185431989477c20e9b6bf97dd0d6c4ad35191445f3e8ae3ee6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USA2P1290806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07242d4ff4b52fa8554ba0e8a4ded15a9f93e6990c373ff860bb4099638d391. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USA2P1290807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709d9995d55e58cb71efbdb127033addee4bd1975761ff7e8ff640be71e5cee6. 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/GBKQU1856713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fd08aea7f5ce943eca5aaf3bea559fdeae3dfa780ac55d6d8362cdf9e286ae. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU1856718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf586c5b651a74c741510f12bb56751f68ec9219f9296c0e97f0a1a0f3161d7e2. 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/GBKQU1856719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241a075dfa7473ffc13ff1973e14543a5824d3639a2c06f35e3fab3dc160a553. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU1856721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18141f0565e8fb7976272e03ce337f7460945b05eef4cdc25367227b8c211b31. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBKQU1856714.
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 0xc414d8144fe6a6205b92374ae3f24ac3b6c8659c2555d3d527202803fb8dbb18. 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/QM4TX1996580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213881b2c030dc0f61e19187be3b462329fe890bd5b584d39d25144c16101700. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/CAGWA2000009.
When Mars Meets Venus (Venus) [Remastered]
I'm Blue [(feat. Sans, Cider, Chronos & Zephyr) [Undertronic Remix]]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374d5c698539149d1bea3773707e0faa7aecebce0d815aec886a0a42073f233e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMJG1608099.
Kumharas Ibiza Vol.6 "Special Entire Tracks Edition"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5289549b5891540dc3154d2d8686246a47ea0d1cc403b4dcc0c6e52795ac63dd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR1HA0813030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2207d02fd78977eb25e4f88abb93566e76d631223ede0003cef9e2701e977f66. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2174013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55068d94531a18c6fb5eb68bac964c5eadcb3efc8076081ab27c275fc24c9d17. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P1263760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45df936a003309c2597b605f159efaaeca8152ad38a20e84ac0e7c8b4240eda4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU1725738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56890be363da11b9bfdeaf390534ed294740936a7ffd8b2f0654df2d5ea55c51. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QMFMG1369813.