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 0xc3a647207e24c9eeb8209a529206c2c320ee36385183c2dc743d959bd4e36815. 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/2bae54f0-3b9d-4941-b424-a5e09b11e32f.json and https://artists.proofprofile.net/proofs/artist/2bae54f0-3b9d-4941-b424-a5e09b11e32f.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 0xc48521b3281d2311edb4d88a3f6c4a0f3735deebbc58ea54888ced182463e289. 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/ESA092315552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ab49524741eded74ba61c677d644bdeea5906518dbdecb764cc6012f2b6f9e. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:39:05Z), 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/ESA092315554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520a37c87bcf75866f3a38ce9712ccd513b41b98d973db7fb0ec0a52c8d86b53. 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/ESA092315558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae565232348aa6459c908ca5d4907b1b73351d6dfd7187f72b1ae29091aa00. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ESA092315559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aaab297e43507f20b88940b0941fa6cc9fe1f4e0284cef576072499842af1b. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ESA092315560.
Los Nacho en ND (En Vivo desde Teatro 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7344a234898b538bdf1296023c4e963497a455acdea7002b6c5f591b1cb1de5e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/ESA092316342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed19883e0d507b9e9ffd0af6c2bd43110af5d55b2cbe4954543f099b30aa6a94. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ESA092316343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438bc03286758c9a9e54a43dc4e1126be3bd9fa0a1387d537b1e52ef290c4e99. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ESA092316345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6aa9c57589d520b5c6f659ada7ef0c58ed6f777c48974f6b5998cc607e9c55. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ESA092316348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe657ffe88bb66ec9d12a3e92190dffd3f53a6e4aff70981eafc4bade513dcab0. 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/ESA092316350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9250e23750c661b4e70802b7a165c2f49d0407b311d5b1cb0a3b96836c19d929. 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/ESA092316359.