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 0x424ecac435e5b6f61f467b9f6d637a8821089866c26e08a8c69db26d5f517660. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1d7fc26-2c89-47d1-8189-7062290b4da0.json and https://artists.proofprofile.net/proofs/artist/f1d7fc26-2c89-47d1-8189-7062290b4da0.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 0x634d9d36e515e7d7798eab210ae50b584c3238a16f0655c3ff07ac0c74d7f7ac. 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/TCACW1729856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a2dd41387f2cc956e8dc1271053eb67ff58c6fdeb1dc4eb6afc85df4ecc34b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZDA71998814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc378f18b2f996c2407909c00b52c85ad5009d1507b1cbc03f54fd6fbee4b7bb7. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZDA71998822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8b3a5e04d9ae4a3cc96646bfc1d35bf0bce000d2921b11c80f43f75a97938f. 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/QMPKX1823835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5f9b4b205a76946fac62f78e017fd995055f1175d981e75e1b41aa064d4cce. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZFYY2058394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30da4abf8c049066ae4a450d27891f923e6e3b87cf538c399d81201d6035cd4a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZDA82053170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3308e7b8e50c035d61d77ceec2e8c13343fa20c26177dee911891ec35fe7ba. 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/QZDA82053171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070084a7d9098ac81a7f88c19b71458071a34d2bbb274d71f411f786f16b5a4f. 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/QZDA82053176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf508444529d024af06f438f6507b20b1ed8375c881086934bcbca2c6964b6619. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZDA82053177.
Gunpowder (While We Wait) [feat. Yung Philly 11]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb9e42c22f17db7927094a9baec40e1899dc3974ff91b97f8effdcbf77049c6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZK6Q2195330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f783b2b1dea73b6d7f26496835d28355d00fdc83b0b81e674609930e167be84. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZK6J2167425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0cd863d7c75db82f9bc06b6c51b42e990349813e9a52f57131a4adbcfb9f9e. 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/QZK6J2215342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f558710f2b05cbfd2dea888187448d970c90b747fda1f9269ccca17f0aa4447. 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/QZMEP2270474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac9485c671d1704011d09ff993f7913360a3a9e0a4c6c87333f26ccf47adb0. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZMEP2270488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d9aea1935ad35d062cae7f77d4df358e068e535a741fd61b1c5d3f583d94d1. 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/QZMEP2270486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba127129c5cac4f6a898ee22c4e22f0112412eb3b6a956a6786c45584e9bc49. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZMEP2270489.
The Outsider In Orlando (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8c925b0dbc114ca6bc83cc74cdd8eae5084635507cc829cb2755972c42eb50. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZMEP2270476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6824173e79fea3c21451efd68c412461869412845ecde0deadc1e9e6016114. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZES72360494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207efe4ba77f6f59099e2db7ad3e754a0976d070aa73b352aa150717e8aa39ea. 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/QZTB82363989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c12afaf8f995ea56b98e74e0a412d235de445d925a378888c73f0fa450e254. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USLZJ2430130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1a5326d0a0cf6a72ca86dc2bd1d4c7e39ea2e63cc7928a44d03f1cf18c0e9f. 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/GBWUL2407029.