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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6f4095e03883313b6cb250e9008ef233796a3e71834f0fa1f8f3286b69cb3e. 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/5629f582-b001-4356-ad63-a61acbdad2ca.json and https://artists.proofprofile.net/proofs/artist/5629f582-b001-4356-ad63-a61acbdad2ca.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed747e2cc480aa944c5bd8fd86052f9282876f656962a4a717731626522e8669. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZPJ32369482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569ffcfc9476d194da2f25bdb023e470aa3157e9ea1f0f28c6154726aebdb9c5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZPJ32369486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880115830993da1c70febc4f894195922a9e5ae60ed7921619b00321551081db. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:19:03Z), 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/QZPJ32386781.
Resident Evil Safe Rooms - Piano & Relax
Dan Dan Kokoro Hikareteku - Dragon Ball GT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccb4e3d73dee099761e541122c3be81aa384e989e7546b89a0670178750872b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPJ32369838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e031afa398127e6d2e044debd8f2055db2da0126cc406ba1a9444ddf75ec6ed. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZPJ32406225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62163b365d04c572b262bedc3a6035ffc950ca4ebe593952752690910c745021. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:39:00Z), 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/QZWFV2401155.
Red, Blue and Green (Music from the 'Every Day' Apple TV Ads)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bb202edc73d1375f3df57b78ae1f9ac87336c1979ac07d301841e8d4a5ab6a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GXF972491301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcc7bc016a60d4b0c28c4fac3958fd5b813f71c81bdcace125689e7b97b5cae. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GXF972421118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18732c92c452c47aad707b23de2d55a79d984ddd78d7ea6afd0cea2f45f6c3b. 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/GXF972491086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c890c942aaeb2f456bf35cf20ca529b91832dbcb74fac4d004c409a5607a63e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:38:47Z), 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/GXF972438421.
Tchaikovsky's Dance of the Sugar Plum Fairy (lofi beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8f7b749451cf51ceff54ab3a5edb2841727e0e3a436c99e11b69f22ce4b281. 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/QZPJ32437805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e408d21682d5395aa4602cbfe54d9d553c3ab650f1ca378385ac6fa4cec65eb. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZPJ32437807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf428ef9091eca30546c6ae5019fe0450733db2e8315356eb265169e40a2b7ec4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZPJ32437810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85f3b64939e11e252d1c1948f235c4de25ed6d2c101d00e6b732fd0d096045d. 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/QZPJ32437811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee96344d0afd903783baba07ad3b78231bfae4d714fc9aee4f27e828bd464be6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZPJ32437812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4cb0b8242ddcadfa5725fce4a99da0f321a2204657125ccb6d3132fe61148d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZPJ32437814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162a470dd4a220319a79b3e3a05e9f4ef353d18329069783bbd3ce0dcbce5889. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:55:26Z), 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/QZPJ32437815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7249ac586712dd847f68cfb589e3dc781f4da47c876aeac7b705cc4bf0ca71. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPJ32437825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2979b4d19a3721654873cfb9c3c6c1e3cb009d35839986a8af77ebe2e2833ff5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZPJ32437832.
Clair Obscur: Expedition 33 (Slow & Reverb Piano Cover)
Nosedive (Black Mirror - The Sorrows of Young Lacie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfa283a8b93ce033f281cffd9ed36a8e91ae973e7ceb42a2e596faf33306f04. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:42:58Z), 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/QT3FF2587410.
never enough, never real - slowed & reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8347c2d62687057382292ffb88a0bb1630a95ad49bf8131ff882ae967cbf5342. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:43:29Z), 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/QT3FF2587411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5e9646d35ff0a63b3db7d5ea0cb96ef157cdf16ae6f6743de6bc65aa7a65ef. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QT6E62515495.
everything remains a memory forever - slowed & reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6bbc9a8f3d144be4f3382f7849925c02a5663c684ba780aff81ce0e10ec169. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QT6E62515496.