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 0x1802da5ca2ceb776adab581245d1728d94f0bdb1eb00c764856a48490d52d42e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e1d78d0-d39f-464f-a8a6-04d7106ed8f7.json and https://artists.proofprofile.net/proofs/artist/8e1d78d0-d39f-464f-a8a6-04d7106ed8f7.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 0x9a2f92d8d4e6af8384494bd42ab88909065a2f4d77d403355e9ff6567106ba40. 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/USA2P2359092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388f46b70569e331170c86f97fa02f207220c410efa20155a7a7b32c8c3502b1. 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/QZ5AB2033394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc862a9812be59c9565ce072660002342ba41e4a7df8aca6bcb1bb66b90da0a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZ5AB2033399.
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 0xd0f16d1f1431d26832ccc1dade5dac38eedb9fcd4df056f7eed7fcd600f1126c. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZ5AB2033400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a4a7be50dd65379c341ced77d6c661ac76b6ca1e41da3d5c83e5f8a2d38847. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZ5AB2033401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fea874edd8c9e1912371ff577d25c472aa79f24089904ef0bd0c334ace62ba. 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/MX2831904685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a9c4b9b0669160444dca0645076b9c226651c23200da118864e48313bbedfa. 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/MX2831904686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9d8317c8b2b8ea114cc4af8b6c9b5e5a667785efc8841c857ef5ef8de36eb7. 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/MX2831904688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1b484a18f19e7ab85b0c5e058a83654b59739eda3b2313bf2795e3b7fb99f9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MX2831904689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933d8d8c84c004d5697c4f47195dfae541eb0914da05f43bf4f6d33a50fef046. 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/MX2831904693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10a11c418187d7891f0b43300de4b6af0b538dba741371e9e034b7bc25c04d9. 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/MX2831904694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3db563ab3daf6eed87aa7db934b773885d2cdfb52b90393e624b314cb869e9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/MX2831904696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1aec0f25ee6116f4221a18b811d61569bfed3defab5958931a846e0072b344. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/MX2831904682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec225b7ccd4bf325f7320aee60fa868e4bb57b4f4300568dfa921ba1f5b3db8. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/MX2831904683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296f2b7774721fa8ab6030bc4643a9ade6427c44258dff0043bcf44d2d2116be. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/MX2831904684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5067f31394b18bde197e3291af5274613ac473f19b601e212a981b743fa77248. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/MX2831904687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5d46dcd47bea49b8b787408daaaccba4dc6409e30f11e26807f80466f53093. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/MX2831904690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cd832b0758bbe52fdb6fce239572c3c82f82ea86f11af86bc15d69ee1489fc. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/MX2831904691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a7e3cdefefdd884a88922e9fafe9b2a8a38ba5e3d43adff8cff713fdab77a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/MX2831904692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bcf69af12270f284a512e9adb94416408c6dc9284623e49dbc3dc3168d8280. 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/MX2831904695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690b77747111714a275a8def2cec9b381e62f3a5c6961285cf47ffd3b043832b. 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/MX2831903808.
El Elegante (Corrido de Lorenzo) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcec8bc5d9fd9aef8676766218746cc454ce4c404bb63f9613531eec02d1feed. 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/MX2831903812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d251cf0c458a9ec341fd7b1178af783ebecc98789dc1bd1263040bf42d5e74. 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/MX2831903813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277e929614370eff4bd6d11811e390bcce5b2c71f45b09e28b25d5f7d3c759c7. 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/MX2831903817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645bc30a582778079cae57641fbb78c15001f2fbc7c52d9f7f75832f0c7a1247. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MX2831903820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c074cc8e4ed6be3a2eb6ad5b4ab0f4f0e0ab40c503656e4c41faa1bb706773. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/MX2831903809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a282d16e6e16b703c21a0b50e7f706ca87bad3ebc7ae08df9a77fe51c16691d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/MX2831903810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ac85d8a573456b26d86a868797ea2e1788939002672477a98fd4bd1ac8f46f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/MX2831903811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8e60a9670578919f7825ecd7bb8a00cdaf91beac93139661a8dc1bdc44eb1b. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/MX2831903814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2249a1639f020875490c903b7817714b3825df8aae442cf8f81624bef574701. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/MX2831903815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9d80edc47bbc476cd2b41d8721bb5e203772408d498ee2a4fce6e6554eb4e1. 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/MX2831903816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9152be2320852913f49d42cb06dbd2b5c3f8733ce74336285df8fac47b891665. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/MX2831903818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6834f8dd4090845516da77b8bc40d52e6061a8ca98b4c76406c9dc5abf3a9463. 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/MX2831903819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5ba53c45aa8e8338dcd075917a505756d9b0c40b93c3f2557f81379c72f6c4. 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/US3DF1602804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49af3f8516aef5c6be33db202b1457078cc48d47972f8cd5e00a765bf2a2fc90. 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/US3DF1602725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748fb37c2bbe033112f7fbf79a75bba4283c6bf3fc9957a17a6b01a8681cf3f0. 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/US3DF1602726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b0990dc2624b95a80b694d0b2efebc7d2765e8412959ee2dd28fd75ee5b5fa. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/US3DF1602805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7b87e717330f167e05243327e3b79af09ed98f88d95ee57b5cba7c71751f22. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USANG2016671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe10eeaba78d1b6ae34754d345bda8a24d4e206ca68c57b86660382d211a4a5. 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/USANG2017054.