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 0xe640214a00fe981ab3c7095f6597c55f7b8bdb1969a4c049bad2d3eb4491bb1b. 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/b34704a4-ebb5-47df-928b-9e6094434365.json and https://artists.proofprofile.net/proofs/artist/b34704a4-ebb5-47df-928b-9e6094434365.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 0x2c1c79ff180d4bbe255b57eedea0520a028d3ab98edd3018cca0a8d8fcb62a38. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/CH6541942113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a461577f8cb77a2bc7178a11755368b0276e9b15f5afe0f23614a7c0a62ceb4. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/TCAEU2042498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572856ea21c7514460041c4560bd99f66ad25119a8d98bb65fb7da61d7911dfc. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCAEZ2025807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cc2c888384466e4f42d311f77d26d945bd2003a52731e81e4f3ee6a76de1a6. 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/TCAFC2055371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741c447ca5a967ae1876bd7b5530268ee09531c244d31d563787f34825409e51. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TCAFF2078104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a8bd69af108e862e742431e3a1018999918ed685a27816d959855d42eb9db2. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/ITIWE2100761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf02d064bb35f0f463dfe990e7956c808d8b100f21e07f8e2034e2a9c04bcaed. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ITIWE2101104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f186a4bf8a6137fa7b7dc1108e00fb548a127627259cfbf650ed50b3c76a750. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/ITIWE2300553.
La vita è quella cosa che succede mentre:
La vita è quella cosa che succede mentre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a6ce5b0967d214455ceb2d7fa450b775d6eb6f6fd0abd2995f530bf4aa2e0b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ITIWE2300551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68fce10816fbcac15706087bd384bdbfcb75e21394c40dbdb6e1c399be43b66. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ITIWE2300552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ab5d57e79ceb082bc4e2c8799a438964ee68b98fb3c5d136200400d86fcbc0. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ITIWE2300554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2712fb2363c6a1bbf14b3853bec2e2415e1c43cde03a60436f5984ec770324. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/ITIWE2300555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c961f402963be5c1d4629a3c2610efa0dc01e866664115f696bb04a451df17d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITIWE2301121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24779135ef3cca4541af322a01dfe6e8ee4303a91e1462a4462a6c47aeea4cd7. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/ITIWE2301212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc042f1c0ca377c813587faaaf5488f66f325f8ca7e42ff8d589535822cb37ce2. 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/ITJMO2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ad3f2ba302c44d56a1e2ff6b9062e740d5193a4507c7f0bbe33a544802bd77. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITJMO2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fb0617602034f2a8076afe4e089c205be8440c8e44148df8a203abd6030898. 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/ITCV32411913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d49d201fa26fd49b2bf456b1c8bd518e3a7f2dd54dbbc39a51487b2c5ea86b. 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/ITR0H2100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3bc2d44256384be81730ff1bad5d2558383549fdb2bc52f83018271f2c7e0c. 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/US38Y2401072.