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 0x96733a78a687f7a200bf1e2220e936135a04aea14da070af76ee84da624a238d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/253ce13a-2aa8-4636-95ba-92581558efbc.json and https://artists.proofprofile.net/proofs/artist/253ce13a-2aa8-4636-95ba-92581558efbc.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 0xfa70c4ae6f51ba44b9aca691a04282e11e27888a9e63dcad054585d6ba8d76c4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ5AB1753143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9820b162e6e85591a175afbdf528a4b0fd0277cef57cbc41aa2cc6ed23cbddf9. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZ5AB1753147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3ed49e6f510ef8ae733b805f7580e1c794e0933e9c09d81cb60cb9906a0697. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ5AB1753149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f25176b4f34acb1f2a7c1626dbbc5f000bd0729901b8bb8b7140743df4ea882. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZ5AB1753150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b419ea132439fa67f09a3c7d9f7d2f50027241c1fd93ffb45fb90cc90e4732. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ5AB1753152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f54bd1d8a6d586708547be55ddd87cb74f6bf1fac1740aa380b9cfb5c319cb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZ5AB1753153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c5a69668c8e2922d18c3cb9d45b0a1fd190858137d61ae67677e78d27ca2a4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZ5AB1922762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aff4482b45e7cebce54669a07683bb5f2410e1372757da5993d8246e2e96dd7. 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/QZ5AB1922763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fef97832407598776bb474f231f32bb70a2e81fa4f08c5e64af980615a34067. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ5AB1922764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9252e6fcaac4beb145a4b95f650e86767b936bff3cb1f634814704e6fd1a3c5a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZ5AB1922766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea94476683bde8d7374e9e0786c6519f251d524bc0963e48595bbff2a0f7be4. 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/QZ5AB1922767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4613033db5909874a12a9bbc22c58cf3bdffc06387453b9f4b2b8a19e4497100. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZ5AB1922768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69935e5c7ce7714cab296b0738264158ae3e6ba68251d79cfa03503a3d9c6afe. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZ5AB1922769.
Piensas Luego Destruyes, Siempre Pensando en la Destrucción
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b084ecf8ab4722057536f79af2472a90439b85a036b078b0c7d71cd09241cc. 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/QZ5AB1922771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0421b0e2f9ce79c3a52d6e70382aebc4d52ee183dc642131ea9fcd7fcafcb06. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:23:01Z), 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/QZ5AB1922772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814f6eed8c7c1a7dca5c290dafcdb5d0891590df4082127735d0b1d4c9991fc7. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:16:30Z), 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/QZ5AB1922773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef1d748532fa3c9c995bdc36e5e2313bf568c452d0ccd4bb92e915105e5111f. 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/QZ5AB1922774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d87485250fe20a03022166c9b6262fb150ae1653641988c9cbf7a97973eba01. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:48:41Z), 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/QZ5AB1922775.