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 0xf6bd07db8f754e7720c2d3c41f6d9fdb663185b4c8d33e2dbb27a1519c8c979c. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e23d7e61-cd84-4b70-92c0-af92242afed4.json and https://artists.proofprofile.net/proofs/artist/e23d7e61-cd84-4b70-92c0-af92242afed4.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 0xfd154ce70a35430d15aba08a33d91bb04074187bb88fdbaf2388c2222c22db4a. 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/USDHM1625752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd54731e605620e8fc63415bc0860ac07b6f433147d0979d1dfcf10df9183d8. 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/USDHM1625760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8effbbcdcd3dac5e38ad469300d399057a9ba1e35d739542ba24bfa6e0389759. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USDHM1625749.
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 0xce9c339ed8467b04a01c4fa032d46cbfd76cf23582da942c5fe7f34b917b6628. 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/USDHM1625750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a945b66b5967b021a0122902717916543853dc92bf41a8487dcff5b7a27ab38. 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/USDHM1625751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b2be90fecf1702293272cecd110f010b63be15ce2d13eac9e6c93c65a7985d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USDHM1625753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce3dd2816e3c8887b487b2f971a1caae7ecf2a2380d9628df717a66cbb382c0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USDHM1625754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdca1a0c8eb47885642094e54780c7a02e05c9ee5f8ecc2107be4b401060fa9. 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/USDHM1625759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09e43ab4729fd38d0a85c22bb1a44d5faaaabd49d7d90fd9ca989dce7c67bbf. 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/USDHM1506685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9350a936630f4a2c5e56c7b8b717988ea12b43638355c650199f936c89a0da9. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USDHM1506687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f687843f47a3847ad12eb1e957565824a716cd93e1f2b00105cc80bbf30f78. 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/USDHM1506688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c76d4135ce88bfb178b5c3ddd834dac0d9af4228e66a5322febf2c46b78b77b. 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/USDHM1506690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ff8d411d7e01b3fcc894df32c6360d4c3e50dc05554968e4fbd6b8c226c9ef. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USDHM1506691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a32c6e05e641fc54f7098f6e5241e896accde75cecb061bced606cc364f4e23. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/USDHM1506693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195e92acc15557abce74f24f70229ad2dd5d7d9c3575ff7fc262ae89e7512db6. 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/USDHM1506694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ee010e7b8d2168dfa90f247d403fa3bf5a4774e9f4663760a5f0cb85e9bcfb. 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/USDHM1506696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e870ff47c49306111c7f481bfc473e2a95055dc8f34f1031de43a721fb74b8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USDHM1506689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9119057e383e0603ff89c576908453ed8942afd210f7ad0493358659e640c8. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USDHM1506697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646031791d2d85604cf16e0ea7b6b309cb6819a91788fd25791006cfbfcf0f60. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USDHM1506698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bd88870f9a31d4f16c4c0589d67a47288dc43b376ffdbda1b50c915a4ae97c. 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/USDHM1419483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2db98cf4083e0f53cd40a9aa630f32e1b3b3f442dedcdae2fe51f9e16f4e03c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDHM1419484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863ff8bae0fd84ed7f273fae08072c19ed1f089deda6a3c0ef684abdb6cecdb9. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/USDHM1419493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a4a498bdfb0d611fa2c503f55dda8cc565b684f3586918ef83682482114a01. 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/USDHM1419491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7144c0d3a22d5d1aa012b78603bbac63fff78ab51565faf266edee0536a41d43. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/USDHM1419492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12724119589017dacec0f9ed07d9b86b6243014dbfab2b0cbfd10646e6c44c7. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USDHM1419494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ace2a64eebece9e1e43b087e49d570578d774517ddd935a982f9eb7cae7ace. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/USDHM1517970.
Salir Corriendo (feat. Roberto Montes & Hector Soto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c991b4a186d8fac4a0c4a4da2ecec66e3357449b44674d5088f7e8b3f77b6a2. 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/USDHM1517971.
Haciéndonos Uno (feat. Roberto Montes & Hector Soto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea2b43260e220568f478733f76bd6374f4c0b3e2ace1ac364b6c941d7bb0f56. 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/USDHM1517973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070d54264157830dfc80f5571ceeee1b46070948fe712dbd47e04478359deed4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDHM1517976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961c5d890ff80729d505ccee70c783aaf3e79e0c69282f9b16bdfc7907d811e1. 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/USDHM1517977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe39f00b806cd61469eee736c9f7cf57dbe455e1aac2cc1d8c1c16f17501fb2e. 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/USDHM1517982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8e36642abd61e54787ffd5dbfdeb1febbbb598f87efc8e30abcce4eebd8459. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USDHM1517972.
Cuándo Canten las Piedras (feat. Ramses Barrientos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc65c1f8ad2ece6057d47b4585fb45e41b639136b3d0159593102e86e8c71e6d. 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/USDHM1517974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df17f347e6d3de162303c5a231b57b6ef5153add2f9b87487592616f788e7dd. 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/USDHM1517975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5624753c6849e62997ae10c83f2295ba14b6c68694c2983c410a4f1f0201b24d. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USDHM1517980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309cc461e59377a7979bb64e551d58346c9ce62129defd23f264ac558aec3f76. 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/USDHM2409577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246bc777b1c0a0dcd815b389e6a0db7813be0d670032d090ec7bfe62ecbae19b. 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/USDHM2402858.