Rola may refer to: Rola (name) Rola coat of arms, a Polish coat of arms RoLa, an abbreviation of Rollende Landstrasse (English Rolling highway – a form of transport in which freight trains carry roa
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 0x802d819de4bb8531abd7e33562ccc4e89b4b25913b1c9da579d414838a9dd997. 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/fbb6f0ac-ae3c-42a5-8a02-cd0e6bb0e519.json and https://artists.proofprofile.net/proofs/artist/fbb6f0ac-ae3c-42a5-8a02-cd0e6bb0e519.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 0x3c1a21da26cc4180b59a6e17e45df2d9aa227695ed774a7ec248c9145185f1f1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEE861803820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db512048a3b62e9ab59278a01d3b486901155fc9be5454039186e6931ef965c. 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/DEE861803815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a9784641630a1da2dec607ba6c32c4c79caaf4443ea95414d13d5cde904c0d. 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/DEE861803002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1a21da26cc4180b59a6e17e45df2d9aa227695ed774a7ec248c9145185f1f1. 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/DEE861803820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe459597bb141e38f1d4d96417863eae93dddc4c1cf56f3c4b77b5b4e03a15dce. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:31:15Z), 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/DEE861805838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf9fd10901b753d333ff2319f13072e4dd957729b53bf180a0101c54a114471. 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/DELJ82001049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc60d4bac9091a8c4949bcc4ff95c42dd612f4a003ad4a4670c5a68d5e24de43. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/DELJ82026844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887a2dbb58ffe63428f4134dbdccc26cff4e620e8b2541cd83aca510f66592c2. 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/FRX872034891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdabca340ffd8f9225a9cb131f56d8aed0e7cdc1de5d6bbb549131d86b3994fa. 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/FR10S2163495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdabca340ffd8f9225a9cb131f56d8aed0e7cdc1de5d6bbb549131d86b3994fa. 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/FR10S2163495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc1af8a093a32bfd2edb51b9159edd165b3f348a849028efb42c876feb3230b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR10S2163497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb489c60c6d014628549ad1ad516ce930497aaa932e663657945f04097d3de2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR2X42243897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451fdf5ad34781adb6284dfeb75e96a37b559d9ed40418fe29b99362a7b6349f. 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/DEQ121320225.