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 0xd8fbc6f16e4eaa250bc97ea25f1aeab2022d192794b2de9080ae3376f6f86edf. 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/01d6accf-79d8-452d-8f7e-ff95ec57fa62.json and https://artists.proofprofile.net/proofs/artist/01d6accf-79d8-452d-8f7e-ff95ec57fa62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Latviešu Šūpuļdziesmas. Tavas dzīves ievārījums.
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 0x5d092f333fb8dcce6a21a2222c8ef3523b17c7f274895f2662c50834d6eeb1c8. 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/USA561408461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3e93482415119ae9a966ed79b0ce48cb6e6ee04b80a1df818d32cdb83da2c6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6P41401082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53e014b52e6c13ef74af5a3e92ac3626fc5aee2e48a8efb6330391b8e1d667d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6P41401083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03be83384bc970fb1570430c23da152f6324ac4d943780a45f3ebe33ceb7138f. 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/QM6P41401084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf46a3019c067b8c89730f1ddd6c61034acdf6f661863112e2f5b2cc68988f34. 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/QM6P41401085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5963da5ad00bf91be3b22f1d7df6076c75b6852ede9340efdecf114181a8bc. 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/QM6P41405534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d44d7c116bb8dc5d9759ac705843e02beab98fafb35fcff83941e5989f9da1. 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/QM6P41405536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918d9dc12e8a701e82712ddbc7020490773e8bb70346f5722828f98925380072. 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/QM6P41405539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a4d0257b503da9d3d5c41d8d763dc11322bbb073d767c852bb5c256bf902e4. 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/QM6P41405545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ab3f1fac0c976e03a17be758cd83b8d3ab95ac33b0c8146c497f36e74e39cf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM4TW1582118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278d6ab4c201a6cb159ef94318cc25cc62fa9388073e632d72ba45eebf4e70e3. 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/LVA109900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5507536eb4a6bfc14d23f3430d64ed72aebf9839a2a598fc0e29cc32eade30a. 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/LVA109900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe788e804d7089160a1293a97e0a7af4e81afe76d4cf7a2dd303fd10802dd79. 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/LVA109900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e5f5155dbd1dfb3e690d10e3fad99a42dbb49b2988e3ee7706080ebcba52c0. 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/QMFME1947319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0c26101b63bdcf7528e48354971eb1fc033a1ba8c85a3da2a4dcf5dd009bd6. 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/QMFME1947325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3f303c5ca899ae1a0efb125d02d78f45bf9af0525410b14a11807e01610560. 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/QMFME1947331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cfc1e191d6974e2564bf9bc8b868218d6c0ba3c373768870a93ee97d52570b. 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/QMFME1947332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db5664a163c2cf1947282370c52c0e677561b593d755d16b6d0180c274e1a40. 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/QMFME1947334.
Latviešu Roka Tautasdziesmas / Pirmais sējums
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff54321f9c92364c311e532a4ea94794b8bb067c1db6c479c96f25e35509af28. 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/QM4TW2036664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5507536eb4a6bfc14d23f3430d64ed72aebf9839a2a598fc0e29cc32eade30a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/LVA109900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce861d759062550b6914b3c2bee039fb337facdc71daf66d416adcdef2b7ab9. 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/LVA171400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f1066054e1d13d8b42febe4b3424d19c758d041e3d065162df41016d332ea1. 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/LVA171400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd363468030b97b356d35af047bcf3ed9bcc4eb1b8d88a0515cd2c9ccf4999884. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/LVF221400518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbc6f08ee93a1ce84d208cb19a03961585d4f756ff6ae52584e61e9b8d21c8d. 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/LVA171400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a64756903e72bd1aecfbb87a235371ebae0e07c58b34be2816e9c28ae6dedfa. 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/LVA171000013.
Guntars Račs. Dzimis Liepājā - Koncerts Manai Pilsētai 1.daļa