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 0x683d3414ebca975a67b09b1ade3133fe729579e8f3fd4a49653f7c0e7b26c580. 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/94c99f2f-a911-4325-9c09-f73fdcec4ee0.json and https://artists.proofprofile.net/proofs/artist/94c99f2f-a911-4325-9c09-f73fdcec4ee0.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 0xb4c6399441da230230d48b09a54ad215b87c3095e569270c98a48c570aa1843f. 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/USHM21162373.
Ready for War (Quitting is Not an Option)
Clear Eyes, Full Heart, Can't Lose (Rock Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0b737ce14e33b07cb466fa58cee17f869c203dd903ff6f4466e53945237108. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USCGH1606132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e78102327360e8343482e275ff0a691d56cb5793ff8c341d84fcac3b3a22c5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGH1606139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a300a3d5b2c02d80e8ee8c624e69dfc23a58ebe12102b3fdb67b4163bbeff2b. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USCGH1606144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7deed0c72dbb718f94313db2f2f2b32183f66b22a9cb2939f45e31e31bc9d935. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/USCGH1606134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e42028c729df10b1ec555e28500cb000ae54158c60ec54bb8cd4480bc940f0b. 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/USCGH1606136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1495db2bde67f0eee7c5e863860320bf9a774174bd0d156f1bd3a6fcf1013a7d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGH1606141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005f2552712fcd0476bd372f64e09e7c92d20bc705d344a5189033f57e62e777. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USCGH1606143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1c9ebe32a487be8dd5fd05df6ba6264a25266d4073f3f3d2cb9ca2d132e15d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USDY41650628.
The Power of Desire, Opportunity & Perseverance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9789170c4e63952e73328eb71ec4240a62f00f671676020116378aa6013a25. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USCGJ1770561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2238251e3beb998c04a6c5f1d064d50f6058e90331a72c9f963d1264d8b1f19. 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/USHM81913879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1c9ebe32a487be8dd5fd05df6ba6264a25266d4073f3f3d2cb9ca2d132e15d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USDY41650628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db99ce681e8f4b4bbf3607b1457ced618235cc6c60b531cd9bda3466608fed1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USHM91912049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e2279ae52ed3562533626d635253429dc5cdf4bbc42b0635e85648808229fb. 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/USCGJ1701428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665261e4b32b960676be3791618d6023032b6c822d2bb9824e4e2295246c53b6. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/USHM91912050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989032964949f8f0390e991c51e7ec887ba8960f4afd477858d0f9742c0a023b. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/USX9P2092478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad35adfc648e8701837446ac42186f1d918efb11e7f1c0a69dfd848604fdcb6. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/USDY42264947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e8086f494e419d6c674811e80140d7e7d2c738cbbd27c4eb42fa1911f24d50. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USDY42441368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7f243842ab443b7759c40af71a998b5c8a50363b012377a99b73e0d9624e5b. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZMEV2531616.