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 0xb0256ee0b7909bae926d3f818937876be1d582f83b808269f50c705404e91298. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afaacfe5-bff8-428d-b4e7-cebce1caa9d3.json and https://artists.proofprofile.net/proofs/artist/afaacfe5-bff8-428d-b4e7-cebce1caa9d3.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 0x006d76dc777d706b9911d4c88f2767426330f82d56cf8d105515370bc138c057. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZMER2409873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7683b4e64fc50342d8cb3b8de66c269ec7bab888d26ecd5fbb502dd34294c76. 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/QZMER2409874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e8eed2c3f9f8c1a652bce197dde98bf421e2c6f00123cf0b059bbf83c4c9bd. 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/QZMER2409876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd983a9b8fc6e4e14c74f671f9aacdc8c671976052ab33f2e17e1e45a5863ad72. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USANG2245903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94066507cfec9aaf92731946fcdb66213185297ad2e81847894cc32555c60da4. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USANG2222065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f44892a1e204b2fbf5ecbfb917107a965fd1ced54ea7612e1988062783a101. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USANG2222278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5418db2a09bb97486d3bda418ce80791b0d14298351c3d2531296ded9020d378. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USANG2222275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3993c0a2a049893518806eac80c3049112dc8010197a86711dd5176fa7fc41. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USANG2222050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a4eacb48f02d8eb1284c67cc393dbd7b3df6ffb9aad1d31788550915d501ac. 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/USA2P2218332.
Soy De Guerra Soy De Accion El Nini - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9701e859b2067132bbb3e6c03d90ecb84f7cbc94d79eb297d78e6f58c40d2c1d. 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/USA2P2218331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e697e26f7bf9ea106802d365dc1e50c8156d54a5205c4a725cd68423e272e3. 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/USA2P2217716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e814b95e9ee531ca70f3c956f12dbb97894c0b316f4543f04458bd8bb4a5c8e. 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/TCAGA2217043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a866d1225a1b55f70ce1d418e2be5024dbeac08077c296a457bafa0a014787a. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/TCAGA2217047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266a6c573714418f10f3f8e2225435f4c460264659c8b66994647a17b6d144fa. 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/TCAGA2217054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b0e261c418124d46817bc2a59b76442bb16eb51dbafd67b4ed9e1a617f478b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TCAGR2248475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf704486b8912458b63c1d0d200ec7ce292d7f62b4892033ee0abff8ca169fd1. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/TCAFY2156334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac1cca9542448e2cc9d4c9475599908de15e17bf8c27dcedf8a38b635d273a6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCAFY2156344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64d8ed2ebae0967191b2aea0120c30caa7bfb722b86e05d24b911a2af09d1fa. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCAFY2156349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabc56316b5703c9a3486e978e3f39325e6786f59fce71d6daea1867cc866ea8. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/TCAFY2156354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e939b8a24dca0632f24a986e090b1a55922f6b91ad5168b51222955b49ec48c. 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/TCAFY2156358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b5f1488767808995394884a716211539e3d42bfc3cae3480da08fdb905e0ae. 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/TCAFY2156361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4a7148cfb8eb4c19daae735bbb5c664f03a845acdf36f330ebaca39a59b905. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAEF1967548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39595934d57fb91fc3ff0b2bdea3382d9e6a0fe76ac2452fad80a2d3510d2a44. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/TCAEF1967541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757eb099ea1987f60a176e102f40cb2a4466409cec7bb2c367b68dd62b5bb51d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCAEF1967550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f90c83da9ed7bcfb982e34ca5b61830191fa9f9f523703c7bb81ba78957e2d3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAEF1967553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87e2b37187c3401f950b2252bc3dbfb4850fcae4f5f1d0decc19dcbb361e625. 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/QZHN72484322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5157d44bae17105b31059c3ab1701bb432209e414bff4a407a248237989b0a94. 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/QZHN72484328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac57aa134e378996769aae67085c39d7bd2cedbf6ca4020c921016df36cdb3cc. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZHN72484329.