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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0078ada92adba0913cbe44320b780b6fcef2cfb05af0088d226ce73dd2930644. 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/13f71f9e-5467-4cd6-9c35-539a669f7b77.json and https://artists.proofprofile.net/proofs/artist/13f71f9e-5467-4cd6-9c35-539a669f7b77.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd6e8e9fc1aed93f5cf316d0a89875f4f8b65b7a944cfa714335cb5e4ae0397. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USA5W1100648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf109dc8f5872da34d63f0585708c3d2afcbe40f9b096cd6343aece8f15434efd. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:43:25Z), 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/USA5W1100650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b933f3d75eab2d1505329dece87064cbf9425393a8da5f4855ddcfccd58d6d2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USA5W1100653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2de543b6254b7ffba6cdee92461cfe879711ba4a8a2f049e60b115978817b3. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:14:24Z), 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/USA5W1100654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbe54f3fa79cf3b8c4278a4f8139df1180cc4fd495c627a32597bdb4eb32e3b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USA5W1100655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f758ad8f4569a87886bae577192860cfee88de59a9fd21fb07f79c77d82df3. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USA5W1100656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9afb241a829340d78b5bcab42bc3a9ae3864fac43d53fcf17a4c8a7121b3ed. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USA5W1100657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033e2373a052b1825b8a1a6564aab20bd6957b34102b13b39b3613c7d6f43c29. 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/USA5W1200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e3959643b3cdc3a7e32b157182d38538c795886316c064a68629e03868d7bc. 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/USA5W1400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3fdb40253ab0f6b2909210b42c057339bc9a3dc167f04ab84077e1b621c556. 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/USA5W1400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130638dd17198abda2995bcd847c9a11b4f1084a16d10c339f5060e73883152a. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USA5W1400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d2b9f0a0c113ac51a25e75a673e72157962d62a95e9cafc0cd0299b19ec564. 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/USA5W1400123.
Known, Seen, Loved (LIVE from the Quarry)
LIVE from the Quarry (Live from the Quarry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75209317c247cd35ce2d4d38bd9f65188c797d16d71499e2bf334bbe0b870fc5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWZ2202019.
Sombrero (Versión en español) - Spanish Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8958e0b12bb42d361644ec91048e70a53393b56440d0e156961669c7b54f2ea0. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QM6P42567946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afafa417de7a29f28421250ed67ecb30ab09cd924c7180d08319eac6ec35d55. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QMBZ92506174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f774e6002d2c556531c8bbbfe1d887f04140e7c5674018fa5270d71c0944625. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMBZ92592450.
Burn The Ships (Deluxe Edition: Remixes & Collaborations)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c6407db4bc27a6a4ce240940758e27d6c542c42884ca9401b35fa9818f0494. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USM1C1800167.