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 0x3f5b6b4aeaa7d75ddc78978649ac019a726d34a0b9951c9b8b0c098e5564195d. 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/9d191c01-3c82-4a98-a2a7-f522eda9c2a7.json and https://artists.proofprofile.net/proofs/artist/9d191c01-3c82-4a98-a2a7-f522eda9c2a7.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 0x9c79a7973c1e6326f4b2e69574101b2eec9a716dd58f4a9f1d49f24b5c87df07. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/TCACF1521568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b166ccebbf61286f50b31078bce0eae50eda17a623460cb10d1457566ed85a3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCACK1560437.
Kylie Kendall (Jay Xero X Brendan Fallis Remix)
Cocaine Coming out My Pores in the Sauna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea504e9917bf8982c86ee7731b8583c4eec020ac6cc959ffc123af912df421d5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMZYR1550298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eb76b0abcf4271468c2d00ef3c8ea5b17a9f5860aa366842bc82aec5fdc620. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMDA61878841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da642f62c76dfceb59bec6530cbaf525b8f01c30070fc161cf57e6bf28794f6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCADS1881220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3493b4b6a8b0a6d5aefe808704c52d4e64d7147487b33810843dbfa67e0fe9e5. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/QM6N21869734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9094f49473f52f8391d6503c5e4a9f33404c536453f0bc721425eea7a5e3d8e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCADY1848735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a1b1c505cd001971ba753523b2beb7417ff8d5e5929cb1650a56a792e9708f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZES61912555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61b116d3adaa49fd14416c58f79ed9d7d346b1cca44be62cae0dbb963dd2a82. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFYX2066746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da642f62c76dfceb59bec6530cbaf525b8f01c30070fc161cf57e6bf28794f6. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCADS1881220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffa80e0762eae6b803a2bd9648e38e6daae1fc49f1d883d8bf0550399f32b86. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZFZ62286504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71707214191d3d6e53050b7674f257c522ac9d9da26069f22669c1cf433a82f1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWZ2223891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365ed57d1fe45854e2b889c5e1b6fdbf4f9567c29768231744611c7c98805224. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZPLS2280167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffa80e0762eae6b803a2bd9648e38e6daae1fc49f1d883d8bf0550399f32b86. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZFZ62286504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4240a39cec58ab2163a3b2291b0d91fb09051dc8306bfc2785c3b4ea3b274435. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTAT2246070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e20bfb8ee53a390c0f8cde84d835f0a9c81f8ab5b379c721600bc226c139316. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZHN72352722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3510a1fcd587267fb978b3a32490cba85bf13bf51705627302f721d8b64f9372. 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/QZK6K2373588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cfc1e684fb264bbcf86dcb27a71fae9660177a679a2e46d8e30f2c8fd8e1e1. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZHN82405341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d511b0e03cbac292298c7f6bc1ca21d3d9e86cbf4a90273580facf5f373173. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZTAT2425225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c22e185441e555f86871868d33ed54c50521c5001e207692fff15ee89b1a8da. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZMEM2557220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0da826336001921b7885761d7a0689a1e413663c60977303ed4ac8b1611db43. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZAKB2514237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337e17c03b96b471b9f2dd17d5e1c4d2d5f7ebcd41a51d2b6815fbd662a9ed86. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/TCACZ1797554.