Pako (; in older sources also PekelLeksikon občin kraljestev in dežel zastopanih v državnem zboru, vol. 6: Kranjsko. 1906. Vienna: C. Kr. Dvorna in Državna Tiskarna, p. 118.) is a village north of Bor
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 0x712a44fc77bd4a893bd87ac0403157c153f0624d6e64b3aeebd04f6323e828f0. 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/a65a0b47-1f44-426e-97f3-12d3e769003c.json and https://artists.proofprofile.net/proofs/artist/a65a0b47-1f44-426e-97f3-12d3e769003c.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 0x65a5eaf15f592e21c2ffda0a0535a34e15837180ee5a42ade06a55b906b2c454. 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/PLI364094780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0947ffc311ae04905ed38d8ec2e6ce04be8dc6f0ab0633c536a49aa031e013. 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/PLA552200785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c89fcf5a12e40d8988ab93cafc18240328968dc6e1ab3f05dbf64dc048e549. 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/PLA552200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f59049cafaa4aa27449fb42f3a2b72ab16a0aa37fc94b624da62237b577970f. 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/PLA552300729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5145146850eae82006cb5b9745f8cf1d83f56900f8734f883fbbaeb301a470. 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/PLA552300735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012ab19b78cd369737c16918a161a24882774eb49af1876b4ec07405b9577d6d. 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/PLC062375292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df2a3418b74928dd8d8cbed02671317b3733c7647e0344e589ad34f45a8d186. 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/PLC062226406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a5eaf15f592e21c2ffda0a0535a34e15837180ee5a42ade06a55b906b2c454. 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/PLI364094780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc936e2c322b35d7120c94b7d8f1e46e5a6563464677dfc9e4cd6ec5bc88bc596. 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/PLI292200580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a27ad9a7fef137327230bfe9c484fadb2e90df8566b8c10e1b568350406a00. 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/PLC062010426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f814d100c5783ef9e3448efa716856ee06a24293a88525ad4c541f0aef58a76. 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/PLA552300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6581c88031567313678ec7a6de3a7e2aa53efd21fbaf7ae9fbd33a2e60db904e. 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/PLA552200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd491b98de3b64e569733c35d2ab5805488aac264328f7216b32af0415a2fc488. 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/PLA552300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11919e0772b92e236bdaa2710a5d185e8774f4f906f2b08bd896ad1f16798f7b. 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/PLA552300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd3e3600817675f95bdf17b9b4d2f9b4ae05667614f4f30a5b21f9a6187868c. 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/PLA552300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce00d2a4010fba1c6c64de3f6eec6bfc160d90c13b05dace64d807ea402a3e2. 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/PLA552300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0947ffc311ae04905ed38d8ec2e6ce04be8dc6f0ab0633c536a49aa031e013. 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/PLA552200785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73126b2c8843d08969fc02a99da39529c37a38a2e7323a8a643741fb049ed608. 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/PLA552300089.