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 0x7c44376351c45e4743a7a0d914225e5c5d25fd754c3ede8a98370db1914007f1. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/308ee3d2-703c-4f33-a642-b8e1d950dbe1.json and https://artists.proofprofile.net/proofs/artist/308ee3d2-703c-4f33-a642-b8e1d950dbe1.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 0xcf45490c42e4e7294a8f4e882cc8276cca89a2677c8f1055a6082e8d42ac320e. 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/US3DF1503759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a80f53a22d71515c0631cd29a62a1da9deb33b0d478bb65ae981e51a82d42ab. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/US3DF1503763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156e96690fe8152e898b0f4344a5bab57fb7784a1e00a3b9d390e8d7e13a0df9. 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/US3DF1503764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ec69f6afffad167da0f5d366efe7e7676fe875b0d2c9bb000d42616b76a9db. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/US3DF1503768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d453b8a7ed087840cbd7c9add848ff13066746e147ccc88de89809a7bd33fc. 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/US3DF1503769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29beee29781e19827f99bb5f4af14ab4527ff66838484b92e551cce24cac3ef7. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DEB631476105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa62889e07138eac85a397255eaa9795be415239beb04230e7f58c68b58fa06. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/US3DF1503687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc776e22803e60bb6951a9f98ed92f263bd34c5d934e07880810c67213e44993. 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/US3DF1503689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970e28f1f126673ed8f5f4c4c852222cb26d167643ab16b0fb8bee2695e72869. 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/US3DF1503690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498bb838da3a0238e42582ff28fdf166383088cdb6b9f6ce3ca852e0a741ef6c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US3DF1503694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c7ce104c07d7794cc4f6cefeb5325afe5550b4c55076bea748d796d75e6d0c. 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/US5UL1441087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b4847e52e2781c6ec692e4110ff1dde30d27d100732addc312fb2321a3d320. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/US5UL1242809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec7e46a985171b1125b227ed7485fbbf2fd1ffb2b2479ae5bbf48fc7ea37943. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEB630107307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4870a18a85873fbbe0cd3d344e05bc8612023507a0a510dd5b342a88d314888d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEEP80702726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f5ce322dcb5a83c3e334375f3ac7167c593babc454014ed8f29583123f73fb. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/US5UL1436551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7a9035e288106008784329c735b37ebe8fdb5c2197fd6bc3365af25647aadb. 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/US5UL0787772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaceb12d2ffeeecaf79b12927252f4b2881a228ba2fa60a7ab8cd13e501f314ea. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US5UL1435499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7b2100d2e45be9f3a29a7d11c9e7ec178308a22643faa8b389f5f359c619dd. 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/US5UL1603910.
From the Delta to Detroit - Rhythm, Blues and Soul
Sensual Night – Mix Electro and Smooth R&B
On a Trip, at the Gym, on the Couch - POP for All Occasions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15433b098b4ec475a35c0be37addb31548018a4ffb025467acafad35950e70e7. 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/US5UL1722436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e53386fd4e88813254cafd52fed9aac87769b92eea9f791f623fff76aa9b61. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US5UL0733074.
Deep Darkness: The Vibe of Electronic Psybient
Space Dance – Electronic Dance Music for Fun & Unforgettable Weekend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f70edbc3e6d63bd4c50e6c2a4274c26b6861b4f8106a57d508fa22c6a3d71b. 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/US5UL2041728.
Feel Electric Vibes, Stop Overthinking and Dance
Bach, Beethoven and Baby: Moonlight Sonata, Fur Elise, Brahms' Lullaby, Classical Music for Your Babies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c63ec1306066a1a19681b05b123f0f997558d10b260b993e5c7afc5e309f84. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US5UL1510383.
Song of the Dragon: New Music from the Far East
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad90893f7f5923a50dd99f7a8b4011c85c6b17ccd33a67ed1f72089ab5dd22da. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/US5UL1705272.