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 0x0412d9ed21a83f20b070d31b98332ce376a9ce0d99aaee20969614eac770b006. 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/019bd1b9-a7a9-4ef0-8df6-5bcff0b5b6ea.json and https://artists.proofprofile.net/proofs/artist/019bd1b9-a7a9-4ef0-8df6-5bcff0b5b6ea.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 0x40488fa5fa235560120db633a3836c77dcb00efe02052bb45de49f621ec1cd4e. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:58:03Z), 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/QZ4JJ1772350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f90022f166d4a6169056d9259a09a1b04ad3bf18f064500bd9dd55f7268c0c9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZB4J1888876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069688b9f5cc62bf7653ba66006b6d5a7876ae09270776588d59752904850921. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHN81980902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf174560fec4e72a716359bc56c9d6c6845b3cc540e89768a48c49a696c16b22d. 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/QZES62073816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04798ab2adca09013c8125ad17fb851b4aca987651735bdf5ddf5a0cf2b07ba6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES92116979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efcd031a33bb6ee93be1d68b2183cb3343ca07c40fef14908798e8a7904e2c2. 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/QZPLR2119805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211cba034c808b67bb1eb99f66502448ff6cdfa5e388a653a4cf3a2d439fd0dc. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZPLR2119807.
You Can Play the Game or You Can Change the Game
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e28181158ad240d20638f3e653b9f186c347d3f8f4c83d32ff47e852c88af35. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:48:52Z), 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/QZHN62225916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331e3840a4b8baa7a84a94846b82764831e0ea9b2bdb9f2af07ac51888648c68. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN62225917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8d6c4c40ce53a140c46309a566585a09ed7d05a92db461268fbe0d527e17f5. 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/QZTAT2257759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62a9a4bc85a4da320d79909ec7da71758286fb8be165a2a42325160aa409e25. 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/QZTAT2257762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8564c7d8c9ca145c88953c561d8901731b9d8bcc81ce346eb03e5586572358f. 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/QZDA82378446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f65ffe42b43022452d260ac8ae8333f49b77f99e92749bc7fd479c263e4c7b1. 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/QZHNA2379679.
When You Can't Stay Motivated, Stay Consistent!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c93e3d1540676e7e7ea3b5cc9fe3bb600c0e541da31202518246d8e9c59c00f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFM2301192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb39ac9ef6d5c6dbb581659bad67a69facc0de031b8529d64713dd5c0072663. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZK6M2444842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe91d3353a95d3bf54d5672b9ec646a26254a5bd90f2b5ad27259282290dd306. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:09Z), 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/QZFYX2509233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d9f9cea47fcb5ab18c23f636d5890d908a37aa9e0314de9e06eabbf850ce54. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZFYX2509234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76a0033321d9d4e67eb6f50441d8b9ef7168e4b7545c6e89073df24a6699769. 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/QZFYX2509238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc0b74775ff7352d5a09b8b5acc2e2dc5445d1e7ceaacae8b24297dbfc2795f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZPEW2576694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619e15dad4d6c0629f656dd5eb98400d66473b4b4e18ae1eb675a6b282ba9b06. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN72525015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc0b74775ff7352d5a09b8b5acc2e2dc5445d1e7ceaacae8b24297dbfc2795f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZPEW2576694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b864bc42c9781648d29e5cce0869ddf6bc7b308c85aa1ea21e51346bd3d13e. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:49:40Z), 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/QZHN72525016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e0e716601220a8058e71254fdb69f6aca75d7d040bae1cdf8394bdd25989de. 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/QZHN72525018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4264784c94a1a8dcb317614ffabe21924626b0b14fa004aeb7034b572cf75aa. 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/QZHN72525019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0e5241069fe05a1df9886778d7115fe4e1b4d5f94acc69ede4b2c67569c508. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:12:00Z), 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/QZHN72525021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738528d00d1e878663b0ae9ac11c18ae6ce9c139d9051ba987ed4624059a8b89. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QT4K32510063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02092b4e14f22931ee9c68dc5f14a434cbbcca280819c7e0d7882079948773aa. 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/QT4K32510064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914c7202c20af6fd795306cf2616537080099b669638c58cd0a185e6ff1ae028. 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/QT4K32510065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5558f3167b5c859443243dff88001c9bc2a9d7e9fc735c76f75bff1dbd576800. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QT4K32510066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d755efbc572730aa16547d45ac32b6061bdcc87694ed105b5f2d453907b75e5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QT4K32510067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764309ef8f58cafb6f92150f766ce7f49ab2c317e641e66dab2fa26f79d3e355. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QT4K32510068.