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 0x25eadf06b430b1cb9cc43edc23228cc8e746d1b2e4be2043f36ef7891ead7526. 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/b37b9e37-7045-4b59-accc-2b17255276ca.json and https://artists.proofprofile.net/proofs/artist/b37b9e37-7045-4b59-accc-2b17255276ca.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 0xb20be6a27b71dd4671ecbaaef643ad7b5744968562e8f61e4ca2648cdf3fefa0. 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/DEGA21301083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef2a4eab451066e82f6516e7c6df441af42b3f153b5b2f9d8169d0d80528d67. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/IL4631500786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338db56b133901ad9edcdc63d774501b120f2cfdb85e4e9b2ccdabc46aa814af. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/IL4631500788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24c482af2bed1bce56a82ed2d258ce5aa4b5229eba6451f85006f7b3c667f36. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/IL4631500789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc511d91879c50072112314b76c22e9d12d78cf1938e44dc5fa11d54a3745f63e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/IL4631500790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc7161f804567cec35fa8a94ffc2deeba21cbb738d6b99a809f9a98b3435908. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:05:43Z), 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/IL4631500792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a75517adf10ab22cb6033e99f92300644770414b2da016301e6a486c6a0a6c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/IL4631500794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c2dde8b8094fbebc51afa68ae7aaec6e4848e7f9d63890dda4cea66c2d472c. 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/IL4631600956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede8d92edb896daa32467d9ac355b963cd355e702a9719b0cabef13bd15d5f09. 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/IL4631600954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ec30189dae22b2c30cea9d1454b271f3b734f44d4a924f9ba34ba5bad79b5c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IL4631601629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8691bb978a5f786ac2a4e793daf1e7a6239794038597c433a489d8aeee19de36. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/IL4631601247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f21a1c1e3d55252b93104f2af7ce99bd835bdee52515797f350bf5ed354995. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IL4631601631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7e00361531a14da78aee19361a0a94ac3eb52e4c863d5919c17fbe6bdebda7. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/IL4631601248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe92646535c96c8330d5061aeef0ff65434639d6adf2cb03dd24980f3a14b5fe. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/IL4631601249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf30b0aa17129f8699076472ea31d3031d14cd826584509ea34d3fe1af31eef. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/BEY921717221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb212518459e4336c90b89d52d1e3e42e6ea790d9c602cfd7e9ed3d78337cfc21. 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/BEY921717222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bd0367497b645ca5372be38e4639f7eb9bbbbf11ca68a70b2ed3a8fee2a7c7. 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/BEY921717269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9729e12378c31640c6cddb5b4358132a51dd7db73feb4c6949b2670c2d8534c3. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/BEY921707267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617ec83cff9efe39073be481c4af29d361abc198384927d4a0edd4b2f2e4af3a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BEY921717288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fdcdd26657dbb02261876a8f67b7f59e6a451374113a680a12de553ef2f8f8. 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/BEY921717289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4221c14afb4707c479e7f921e1360fe1ae9fd5ad0fd6c0edba02fadb304fd989. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/BEY921717290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c9bf861f11878f047bac26d2a2b3ec6a06adac614e031da0caf98d83e72a5c. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/DKZVA1962418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc21340167873dd1fcd89d4cc606f50effd5d76d80d348b4273ed97cac4b18d7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/UKR6V2180373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9e50cd783380320b0b3ea16e9034b47dc56314bdf9516f31944ef8d3eddfba. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/UKR6V2180374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44780874c9f1726b79347c6fbe1bca338b9a9108d440037e9cff52744c127ef9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UKR6V2180378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5877e4a511c83d21973c39a90a9de00fc28ff2f25028c566a51e93b75887d115. 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/UKR6V2180379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a37fe2a2e2a357eebfd513598ab1cc59d971b692d60e7c3e693acca5e16af4c. 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/UKR6V2180380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69d2f01c421c86a8f6baab2c35bb19d5ac15bb419688df12e8e6daac176c0de. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:03:52Z), 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/UKR6V2182057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d4c8c32194ebeab245be80e94d89324ffaa86356d28d65375b89e0b38a313b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/UKR6V2182937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3e80cb76a2771615e6ab18ed0e2476d0ac6848e79979b5efdc05e6d1c3d802. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:31Z), 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/UKR6V2280899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0a21d5d1947be7f135e1349572f9932bd1b176a693b2477bb13864051175cf. 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/DKZVA2200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66936a8fbbedd98b7884a501a8980b9ea7c1c809f75eaecaa5633dd0cf41a2f7. 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/NLQ8D2201438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7f4f3309e003524a5d901102c9907a3c9e9fe81c537010679e826a97430b26. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DKZVA2400156.
Trance for Nations 14 (compiled by Astrix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c216da471d0bfe3a7af6c1a7f91a8edd3103ea1d93b47961e3acb85345abc61. 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/UKR6V2381940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c0761595a0158449692e2d184705ffcd4fadab39ac31a5b1f3c85aeecdc7d2. 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/BCVO92200007.