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 0xb016f3f5a07b5aba8a0b5b7abf82dce972041bfaaa25fd9d574aa32c4f4ddeff. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/601c6a53-f970-4bcd-b6a7-38600a14966b.json and https://artists.proofprofile.net/proofs/artist/601c6a53-f970-4bcd-b6a7-38600a14966b.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 0xa5cd7c1bc3a702c8beca600aa8b7298d994b17147bb2f7b948117659d37fcc29. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USDHM1703884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5ae5d69b80f9ff595ec172958781e9c2b7faa277013c86908c74c05f000bd3. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:34:26Z), 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/USDHM1703887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfed1191a8b8d2141369d5511db51808dc3c7752071e491477a934854c431029. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USDHM1703888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a57e49a5ec03e07066f3a73666f056c735986059a48a60f78875c1d3d808607. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USDHM1703892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d5c92408c8d14870c89e1b2cd3edc1635db6fc8d94d8a9404ba00da71e7eda. 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/TCAGP2200928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15867a1b1a5fa3d78fff7e193413cd329f7f0c22a90e443d6750ab8c42d18aa9. 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/TCAGX2340906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd136858b2388756867e3eb323fdbfd66942af02e7ea5b6a58e56891d3d38b11. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAGY2317598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267a57acb9ce41a8025b235d56d49316de2c4e9ef486fa407443f6582be613e8. 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/TCAGZ2395359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3499d693dc91ae028154ffa573b1f212f5ec4507b9d32a9729c773796e95dbad. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/TCAHC2363023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f15855766bf506f52e271f7906f1becc0029385aa073b9990169fb469d87d04. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/TCAHJ2326614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafee4d9aa0aadaad7c2e84eb84ffab6aa022f707a9aa4ea204b4b4a03d712ace. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:58:03Z), 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/QZWFF2462912.
Fire of a Thousand Years (Reimagined - Live with LU Symphony Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058023ad24fe165cb1e1a78202bb3d76b96f451627b3da95d9cf41bdf424b7bd. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:22:13Z), 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/QZWFF2462915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffd016dbf1810e0360d186e25c6906f180747514ecb9fe065375264cd67d4b0. 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/QZZ7L2489467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1897c0b8ca0b83895c18a0c9bc2f356a02b436e311fc641172eb612e8831b1d7. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZZ7L2489468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9511b894fb9bf7b7ca688231eb1fb44a2c298df784f8e73c71eab9627e1131bc. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZZ7L2489469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4495ed3c83732329cba608557e441831fb7a3027c9a9a7b8be72320b286e39c4. 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/QZZ7L2489470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8abd42ed7c9ef09ca407d179caac2c6fe998a9b111debbdea9f4059367d1c2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFZ62535100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede69c4e78495c26584c828c6c8ddddfb3ced2ada043ffaf0bd32bc098436f9c. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:25:32Z), 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/QZZ7V2516131.