Rugal may refer to: Rugal folds, ridges produced by folding of the wall of an organ Rugal Bernstein, a video game character created by SNK Rugal (TV series), a 2020 South Korean television series
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 0x40dac425b326b9d4766d3ce54e898ae6cea1975bac626c59e896732a4d3a9079. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1f196bd-6809-4624-bf07-a99c7513ebcd.json and https://artists.proofprofile.net/proofs/artist/c1f196bd-6809-4624-bf07-a99c7513ebcd.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 0x69913542b0631d7d7e2c388bb671b9fea017ce0efd0b832617fcae515f95f284. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BCXF42400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fbfe70f75ad78d4aff64753713b1cd1a22e5534eac65de18edf6b5133ab9dd. 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/BCXF42400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9afc864b0e8305e465b219710b144e4e4615ceec0e318d988907bb7d505c13f. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/BCXF42300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905ee0b40d951b2eb9751bfef783114d850289834157260c3a89f360348e2545. 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/BCXF42300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccbab2b4a8e75057ab88bfdec8405d0f4906e9a62b8f0ff6162146c36b3985b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BCXF42300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5826e281fbe3bbc2c75dd42fd211d21ddd63a9a338ad0e0b4a950221f0e2689c. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BCXF42200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7e44b49e70edb0f1e734be38b8d93088b02877b11c4d6e184e747aac381496. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BCXF42200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0c1f824a0a19773c7014f64cdb5361943d00b2c9569ec790cfa96a446b6a69. 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/BCXF42200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbff15f2d705d169bd1aca29ae265b4c02cc8c013824a7d054b2e6a14a6e42c1. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BCXF42200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c388bc617d085bd6832af9f4d3fc4b4c7f9af86b835792a142dec2696501da. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BCXF42200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dcde1ce0b5ff701c9e87305904e3cef222e9911fc284ab588764657ee0994d. 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/BCXF42200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68ad4897e915e69d797dfbfad24d7dc763d693413f0923b6aa9eec9f27fc6d4. 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/BCH4H2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8360b3d5ada8bd59ea073977232df4ac649f89a3911dd806db8cfc02fa25b032. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BCH4H2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e72e643cce231f3983efe649b089465d1ff995762fcc983d073231b68efa35f. 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/BRT3O2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab34631624155e2e02bb0d0349485b66a19fbc2a12eb4db100a8600771e7ffd8. 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/BCH4H2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0417d63db759e019654d78947d6492d6f42d799c39c1c7a1e612f1eb2228e519. 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/BCH4H2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a319e11f30b67e9535ba2d3a38dc7018923c3f16f26a289c2e8611216b5dc1. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BCH4H2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd01b2cf911762ecacfe903507aec1b3993c22ff35a76b03e31f3b371284318. 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/BCH4H2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9f0a347048e301680d24d9f24a0aa480f69a64b1063eb332d82325c3cf6672. 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/BCXF42200020.