Roland (; ; or Rotholandus; or Rolando; died 15 August 778) was a Frankish military leader under Charlemagne who became an epic hero and one of the principal figures in the literary cycle known as t
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 0x74ee18c7f6171d0edbefd2203f85a47bc10ae630a0717e3faaa1e911b308be8c. 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/e8135b9e-1789-4e3e-bade-fd08f7068ad1.json and https://artists.proofprofile.net/proofs/artist/e8135b9e-1789-4e3e-bade-fd08f7068ad1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xddc1a5b5f220299711888fbdabe564da313872193f72284ffecb0991c2cf3c59. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA062228419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cfde338f118e420c757657524d05fb22cc918a946ccb07c1a664395541b925. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FRX282345050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180d576375be0821d0c784314f928ddf2cba7611594b36a10458d33eb3541383. 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/FR96X2378192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc624498ba2c7d7da1ef5bce2b310db79d38ec1642e1c39dbcb0cd1c1f651ede7. 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/DGA062356788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30862acc340bba1e05a5125aca1482719d1b8ecb51421f6d304a59118decaacc. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/DGA072367481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1a98e7cfae2cd6bfaa3f5b3df861a315d132639c553bb412eaa3087b0b0d0a. 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/DGA0M2332771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eae21739a94d48270f31a73e4e2f6d7f22c1510c895d6e9ee9de1b2f2ef4a5. 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/DGA0P2308219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab2e7401104cdc7846eaf798b0212077eaef3db00679b7692a5ba10c0b75619. 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/FR96X2424774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6833d47cb5d8a1ce65758a74da7407a232ead42e81887c0416d90d6f8d18b3f. 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/FR96X2477913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044581478256c637e8e45363f1b53569fdf82f24bb1c733d76ec97f2dc03dd88. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/FRX282459263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11104f492165e2795d9e1f8574949bc515e4194647c1b33a263729bce428349. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FRX452449251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7b1276b2d487d793360328c258584644b998a43f6d9d20c30ed5ddec487821. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA092498265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7caf6bf19c6b0b85dacdc9e43a67463dfb518a8766ca8462fd981f93fb2e0a65. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DGA0L2464055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a4295408b2b7cc76e5bd6c1ed3ba1695b438ac9a454f210cb27121b74285ef. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DGA0Q2499726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa684adce4e6e643bafaeeb123c07034b177a515ece8b137027cf0feb917f31a4. 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/DGA0L2469446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288edc89eba77d7f90d41d8f40f2fefd2d35af39884f81b3b1b8923a662fc73b. 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/DGA0R2447907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309d9e26c7ffe72c00378479e4a1915976de76d6acd9df7678b919eddae4522a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/FR10S2587901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d33a73a60517fca980aa7c9d9b218a8fde4e6f8b77f2893d32c296ca3ffc53. 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/FR2X42588387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b520159ade8a8c45d978353cfff5706124e7e4d913f2a8e981ab4817786322. 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/FR10S2588863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f9beea54059214e6c8d1b22f0b0bb04bac69e7b42b56ca1bdcf79987b535e5. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR59R2523229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0a672c62bba50df7938581c002e196fad3e19ef48a43f0c577f03033ba6a9d. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FRX282547565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23954dd682a3c1b1fc98341a08a6d0a3e53db74e8f230758860aca49c7424408. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/FRX452507773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b56e021f0cde5c098c79d487eb6bf2bd621d7d212d2c79c48cd797a92717cc. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/FRX452547699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b85084c9ad8c30b09f39e40d53168ae31631bc0780a04c2bb0de6e86b424cd. 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/FRX762546202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fe313856190d6972e3f7cac4e3e9767683ab5387737d5e27469d59abcc1461. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/DGA062519918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e18c896e8f179ca2e6dd973f76cf098ee9077784b2db1db268a7f52c59f4cd0. 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/GBAHS1100357.
Somewhere Down The Lane [Mix Cut] - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebcf8b2efbc138e16af52f6b09ea345c6b666dbbf2d0f3ada7a5c1407a0d7c0. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLS241401020.