Daniel Guerrero may refer to: Dan Guerrero (born 1951), American college athletics administrator Dan Guerrero (performer) (born 1940), American performance artist, writer, producer, director and gay
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 0x3f3b8d6f80c2e9a2eee62bb0024270809b95558f3c635c6e688ae4487ece9200. 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/a3113c1e-1376-46ce-94b4-94af3f989445.json and https://artists.proofprofile.net/proofs/artist/a3113c1e-1376-46ce-94b4-94af3f989445.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 0x6d4fd4725613ffd8aae39231db9c4e9530a92f3e18ec8d96586b6f2dd52519d5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ES71G1865636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6847ea1a5f9528457c00f21000c3245f99ac07a4b2f5ae8e4edd4422a2001830. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES71G1865661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db311c3ebb41bed52cd28520a90facaeb7664600c283a3eeaa0667fa43d93ba. 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/ES71G1865662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7185d2be7d8918d11f29c06985fb29e5aef3e98dc0d32b1db8f8dde030335696. 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/ES71G1865663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab299377671674e25d74561f1932dd8dcc7fb450e0b1c80953e0b420ddaa328. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/ES71G1865664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c1f1844c96e5e72fd20c3f49ebe4462960512178fe730dd06428ce39997a28. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ES71G1865665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf356032180f8642d65299ff448e1e610f99f580d516104b0f978b694206f3f4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ES71G1865666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9925fc95f8c733f884d33127ed96b06d7309dfe6ffd3991e1ea40ad88b000322. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G1865667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd616f70bc48cebcc025a50295b0ee455ce59507837c4378aa56f920a6a94d13c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES71G1865668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3a672695601e70e6ea1cde6701df1259709c509ebde7f09f777c6d24eca53a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G1865669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6759feb793c5f44cd293e62b651946ea10522c645a48cffeb2fb0e16db8922a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G1865670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c08a5b9412f6618936a25f2f691ef1883e62afd45c36361de453340904ce420. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES71G1865671.
Selección Privada Mundo Records (Vol. 1) (Acústica)
Selección Privada Mundo Records (Acústica) (Vol.2)
Selección Privada Mundo Records (Acústica) (Vol. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2563dd51d5f39d64e89f5c4c508f9df2fc683c341681d60c6310a80ef9208cc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARIXB2401136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564127d73152549477c28d80a819821116c14abf2ba756440532d9491965efc4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/CLLH23603155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3090765d37fea5163e2c83dceb6c39ca6b4c1169f0e4bcbd4727aac4028da9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6Q2036081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cd0b52f5be447ba2dde15c4f67fd13e056b6fab4f840cc838045765c1bf285. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGWW1932908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564127d73152549477c28d80a819821116c14abf2ba756440532d9491965efc4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CLLH23603155.