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 0x15341454bcc2b67938a8869545c603dc94466ed348085d0d440cef4f071b9307. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c09dbd68-1eb3-4359-9f81-701663636e4d.json and https://artists.proofprofile.net/proofs/artist/c09dbd68-1eb3-4359-9f81-701663636e4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Puras De Viento (En Vivo Desde San Pedro) [Live]
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 0x31b7b6df75889cd457c98bc51b8b61a268f62de8b9bce3946b74a23a3fe8e502. 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/US3DF2248463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3d8acc6f74185b1e6adceabdae8e3fcc22b4a5ce628a84fe1dc076118ab877. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:19:45Z), 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/US3DF2261389.
Puras De Viento (En Vivo Desde San Pedro, Navolato. Sin.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05178d7e646af945e6c9c3982b64f5f68f34c75f34fa93e1a8a0d6fbef4cf751. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US3DF2278502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1391152f43c40ea6dc923cbd56858dd994ccdfd9047bf56e5a803159fecc4094. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US3DF2278453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9714dc1fa3037a41dbe4074b62e2bee4fa96f1a7b61deb0b80c6d17f3e8ecf5c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/US3DF2278464.
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 0x724573f6315d333c28d6e5dc43184c4c0f9de1dddf7711b4518c8b97fa9746c3. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US3DF2278492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6230b4077c4d11b8e0f3445b914eba651256c28ed0148fbd40a77a9f1cd153dc. 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/US3DF2115000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274ccfe8200d91c45728536ca4c74c4a1d360df3f71c0aaad545ce3847bba83f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM3DF2163576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf5a536734505e3ca7a1695cf30d2f3f77099d38c51390d699b33e4f3e0c1d0. 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/QM3DF2163579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07cf1b34e62aad14bafeed6c3027ef80bc6d42752aff3233c09331344898830. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM3DF2163582.
Llegadoras y Corridos Con Banda Sinaloense
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a29ee4065808dc1516af048b0f783b64401d9d3a504829befc45b8fb04686be. 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/QM3DF2163558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87ad2cf0922e13f18ed6c9174284d953bc0d870e5c42b0434b38a4d46937f36. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QM3DF2163560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ae9620872b14a45661e041638065a679e067c97f74d40d7bf0b89c7c15be23. 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/QM3DF2163561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076b078a0f1607845e3c8d72a33446c3130bd2d3903a4d48d798e8ce37459253. 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/QM3DF2163563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee53309416657031876939d6a97140270a1763b08057d2ef2866c51b5a82e99a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/US3DF2115010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1afed1d1aebff80f196ddf7f022fe1d4fa295a50fec20cd4c04e35619aa719b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QM3DF2163574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e343c70a3971141c4f4b440b59dc29325b94c10db384670c8c77a719d64a908. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM3DF2163578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe144d21e1a1aca97b3ad369ada85f9361a34e0930ea5455fd87cd683483e3a7b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM3DF2163583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cca976bfa1f528e00001e1d21e78f0ad358aa5912d7305e6b06d42f96c49202. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QM3DF2163585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13492c31180f04efff4150eb927ccb954449b956e9ca431d451a6cdd5e39ece. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QM3DF2163586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12e1fa5d19c73f8206c6e3bf18c3377af646509a9a7c8878471d6d8345da6bf. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QM3DF2163587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2a16dcbfa2a964fb70e68be0de91b9751df090d5b356660b0241a6a54f0aeb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM3DF2163588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd605d38b9386e6b72d814e50ea5718e6cff83138d4068c00e59c9561b763f73e. 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/QM3DF2163557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1107ba1f8516b3e157ce0ac0d6b6892dc265603926c8cfbcad6d36a97076ae. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM3DF2163559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd835c8a20c679b8fe628f306b76c3a55f5c5f79ec71e3b1df74be5bb2131e176. 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/QM3DF2163562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb86bc2e4e62307e8e1f7b10186c7932a5505c2c4b59267d2fcd35426b03dda. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QM3DF2163564.