Reuben and the Dark are a Canadian indie folk band from Calgary."BTW with Reuben And The Dark, Roger Roger, Justus Profitt, Federal Lights, Merival, Jerry Leger and The Del-Fi's" . Cashbox, January 20
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 0xd9cb12c12deb123a12c5f863433b39b00bf8bc4fe813e93e5c01d75fbbbcff72. 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/4d7b36a8-65dc-49f8-80e3-0d172e6b8075.json and https://artists.proofprofile.net/proofs/artist/4d7b36a8-65dc-49f8-80e3-0d172e6b8075.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 0x84126bddd9c0bb6273881a22449ae902e0cd9331eeb5523c7bb565185be77c74. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CAAA11409103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f4e8011f16c6f1b5abc6a74eb0c2c35844fb2b0b6c5772a76dff2f36058372. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/CAAA11409105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7559b5738c0e83244ef2f70274beb7cacbe0a77fc869d3416b85848ba5a5871. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAAA11409104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984489b1b782313ee041a7a23e6cd8a7078b253cfea8903fc3aa414ac054eb76. 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/CAAA11409106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc17115c1b5c7f0f9d685ff594ddf52a3233a4e557e979c50c6363b7059d8741. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAAA11409109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdcb812732e115d64fcbab56b8afb6aa53943c0d32816059a1c8abc1e50419d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAAA11509112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02548d9d1420b8473bbf8defc0ba993c696b7ecd5f8f169a87618044cbf3b59. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAAA11509115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d21d2634516def9fd9a5645ac6aa19be77f2d03a1fc4a71d479a9bb0b371cd. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/CAAA11714607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07b35852c966bbc107819e116451806fb929b84c15d42e52d5a1d0718d30398. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/CAAA11732701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c7bad7717284ad9966dac68a7defeb89a4e696b4ee5a39860da630e1a95c37. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/CAAA11714603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473e89b8dbb0c1268e7dea849b70cac0cb97040e6643232150ebd05f9599e5b3. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/CAAA11714604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7dc235cca6c4e1874254bb86ce2cd0dabb7cbc9d3eee756bf58da4e9fa6014. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/CAAA11714606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736909697b71ad9d999780f01ddc3ff15a4a37c11851e255bb14ffa1925f25b4. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/CAAA11714610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c68fccac7239b1d07055e03f46b865aba5ed2399610f255a6f1162895349929. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CAAA11841401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834a080df9df8efc99b0d42653fab758dd802de76fd0b88b604eab0bf448c1de. 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/CAAA11950301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c68fccac7239b1d07055e03f46b865aba5ed2399610f255a6f1162895349929. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/CAAA11841401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162dde7c2d8d116d3254d26ad65b55d746523784ed8422b35e54bef177d02d10. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/CAAA11914615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc6e5d20dcc8f286fe4bfec00f84db4af6f6afd08f88fb4da1c228f8035f1d6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CAAA11950401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d7fa40e292deb6886acf2fdec2bbfb20ec8fbb50f9235ece89cb0a48a0ef93. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAAA11951301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4471bf75d1717bfd2957caef9235e678b8c0187bb232cbba8e481d0bd28e28cb. 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/CAAA11917603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d47c8b306d0c35f151a9ca6dc6a5eac22aa539b69bdf4ad68270b8a88faa2f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAAA11917611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b063d127134eb1808a8b6ef359e170007d338f201a27a4cf10333f150b0b98b. 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/CAAA12056901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441dee75bc87188e58e1abd723d4ef2d87f891fffd88337e2cded16a87e9660d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAAA12059801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c57da0b3facd415a860cea2e71f79e7413ad24ccd617e7df963e83ac305b4b5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAAA12064301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1a93bfa288e9d88f4dbd8a7ee73f23c72aaf3decf89a57d0ea2db94cc56870. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/CAAA12169601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa347d8205140b5d8f47704cd3678ed10b97f22cb184c838059719dfb36b04cd4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM24S2102590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27861eb8c22efbf4df416f4748609ed5bef34859bd78ad15b065cdd3da265e89. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/CAAA12222501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1a93bfa288e9d88f4dbd8a7ee73f23c72aaf3decf89a57d0ea2db94cc56870. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/CAAA12169601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7a316bebba8214464517b8ad308785954687dd4021f3c24c02107e4dbbf322. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTL92177683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40b07cc79acc6f5e59ad648908fd2e98297845933fb39a4672bb8474aebade7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CAAA12222505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9a49bdf13b81ecf2f3067c31fefbd61fbb6c0661ac633c738dd7ddb51fb6a9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/CAAA12222508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d664701a2193b44d1d3de9769c3fa4c6800b189f1258c5e182dad2a7914d7e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/CAAA12222511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d78b8980f49a6b1361f082710e1f35df08e29dc9d97b0ecad9379eea4e5ee2. 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/QZS7J2375902.