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 0xc6d479e9e990321da7f5fc7cc1402032073770af376b17d85d374760a88b2025. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38ed28fc-db9b-44a4-a96a-9acfae87cb7b.json and https://artists.proofprofile.net/proofs/artist/38ed28fc-db9b-44a4-a96a-9acfae87cb7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Priekšnieku Nav (feat. Mazais Zaļais & Pēteris Upelnieks)
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 0x3e471a0b4d3c97f6b4cbf1ed416caf232140478900da70af8ae4bf6973147650. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCACJ1567443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1d57e4405f7fc9e815e2e65dab522ab9491fa73a1b9311bb5e43c09a2314fc. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:54Z), 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/TCACL1636846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef19a53b78d298d50944cf856b4f6c7e63f2e52bb0a7cbea4601ef350ecfe5f. 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/TCACY1765231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2347b41fbfa2b3d22e7d3b515ec71333cec995f12c5e8208bb4e90dc3dea5d0. 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/LVL151703454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33589a345d7b034c3adb8daf47913a937640f1691b682ea3ab80502d4194c171. 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/LVL151703455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ba303274df810e7182a2f6b9c82a8ded20497cfe09d02da829babb32322176. 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/LVL151703456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a3ec9a9dacb35afe9d2b4689a0d10bbf019c1a3a9652843cc6f93d79a6da7a. 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/LVL151703457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffbeb85d59c34bed7df88a6720ffb745f51de090cb4e3ac6ea9209fa326945b. 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/LVL151703460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860c5d6a7c98f35d10ec79f233415e2d0d366e6d567699a81b20f8f6efd67bba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/LVL151703461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44befed797841cf1609bafb227789a0d97c4659a9ca17713edefabf18081c3f4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/LVL151703466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6f847224f0d27bf603402335bd5757e237fb35288877ed722bb97d0257f445. 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/LVL151703467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7368b793e88e6400ec6e726a66ea102ddea4ef954eea7090e95f7e567358a508. 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/LVL151703469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef6487f2107ef867762eed781387703d70df330416ab3183d6c3d6e002646d7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/LVL151703470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fa1d572a24bab46d7231099d52c7cd8ec533d89a86912e944a11d92e88684c. 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/LVL151703471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72146f90554367e6ff67a5330111c63cf8981e3c8b2c73d76991a9b2e50375a5. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:38:53Z), 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/LVL151703468.
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 0xa08f4a3a8d5d17103b7a3cde4edfa804244e9b9fdbac178218ca4838de05fba1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/LVL151703452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f8875ab0e082299b8a32ab390bb3d10831c3891e2fa34e9bc1dad49758c2fe. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/LVL151703465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afdb772d632ac9557bff8d67c57570e829789e383718c11e52be96f68b1733f. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZK6J2046234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23881c1c11c9195cdbd4fa618cafa961628a2cfafa62512dbbedf50ead398641. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:54:16Z), 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/QZMEQ2008369.
Svarīgākais notikums Latvijas pop-hiphopā
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd904f17173aaca42eff2755b63d03677e829e68a16ab49e6797d682de2cf93df. 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/QZHN62353164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3729569f62454a520096feb853bf56433e259efac82693a3500d90ff38100d18. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN62353165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b58a4923015dd3e52db354b5b650fe2b6abc0a4721a487b1e31a7cb6e618ca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN62353166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77b0fc1bfae0989f7f502c47bfdbc8fc91d2d0348990a0b368906a2f89527c7. 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/QZHN62353168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891806650bb59c67b8d01fb25730576913690739bd7cb35c40e39141c50826e7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN62353169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800b86bc5d17a7f53eb25093e4bd85974479ede4dad8fdc1b6215eadc6028dd9. 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/QZES62314641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e492749fa61dc89dbfb71df8f0a67555498e82d98e6e201d4b4949f90d0eeb6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN62353170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d9ec63071b1cb61ac329febe2dc0807c54dd92f1ba01836b8c7b37379333d6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZHN52342024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9d21cd1a4b7a757b125de8e45ea723a9d5c45102f87a1fea6b0eb0fed709db. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZHN62353162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4774c3fb3d9e31eeb87a5e9bf765b48e16297bdb4c3679a1501fd44916dad8c. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZHN62353163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b423c368b3276ecdd6307e34d0e6b768ca6b358c3f5489d19d66bc5ade4f0ab. 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/QZTAW2369855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d12c72d6259f0ddab7b5315a0866fb1c1837489d1e771964e543e7871819f2c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZWFJ2365294.