1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc17794cad2b7d23352d2f999bc5ee25cdf06b1ab5804674fedb4948a81749139. 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/63ed9926-e8c9-44e0-9960-13fe9d6309e6.json and https://artists.proofprofile.net/proofs/artist/63ed9926-e8c9-44e0-9960-13fe9d6309e6.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 → block OTSBitcoinBlock must exist at that height 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 0x1c9ad33d71aa983e63bb1dae6a8135da92273df682ad328bd5bd4fa2337ce1b2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA82218111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bd06f7bb5542df48dd108b6dc5b03c267de8cda0087e730c5b9bfc3226f544. 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/QZHN42234079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fcf5c1802266dccdbe33c7b765d2c6fae5bd40f904de48ad764e31c7c9dcb3. 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/QZHN42234081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813f320f5700b193c46761c9e201b20f00e4c03d328a0030cf432d3ec623c147. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZMEP2201037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaed81e5a7f469bc08c744a1dd111ab6ea23cd0557fd1e1d6efc343f2cb74a18. 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/QZMER2285070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca478ad9deb2a3ae9090db176010527e90e91b12860ccf7abba012b02db69b8b. 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/QZMER2285071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57dc8d841c2b29e4d02dd64d0588502795f56c99394e81bf8d62c32c1c149a3. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZRP42230337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c6645c6227ff7aaed72f3b92e1c73dd4e951b1eb528323b2d3dbc66d1b2803. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZTB92270890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650dfe9ea69b001bdf99657d0d08331185ca000e2a01bb1216a4455660874efa. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZTB62292865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc54c1f0f7a4ea89353d689c3a4f29563211e3d625aaf25d922f2ef89fc69af. 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/QZTB62295046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9939b72697781bdc59b3877acb1ab16a3d45ce6c1337e1e1368e70280480d1f4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES92335250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9165c3bf175c5cf55fbf4cd8786d9aea599841c4a0f7355573167de885c3d78f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:15:19Z), 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/QZK6L2337307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851d67728d68e45f6351ab648a65af4071cc03b42725f66657d083a16c48cd6c. 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/QZNWQ2323972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871b8271fcec02bba3fe7f197ccb56f03220845e3b0788370983c6e58443d0b7. 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/QZNWU2327093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72d5feab911e83e3740be97215e09e1180bb3a8d621efaaea4f84e038ba2e25. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:23:30Z), 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/QZTAT2397530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde09719941d4eb45dcf88bb51ff25600316893207da20ffc5d88da94f5727ba. 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/QZTAW2346883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ab760a3c46db3cacdcb033fc7e5bdb67f9560d85dc9d59f0a99cbc39fc852f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTAZ2362267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bca2ca6ff0afc39d1b62d82aa8ed4a345a018107d7819bb9a0bae37ebfada2. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QZTB82384757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd697c0a1df23818527748b2b51a8d6da7794ee20f7799998eb41c905f539c0a6. 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/QZTBA2365016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c562f70fc2c11cdf0e365c632d1b6acc8cf7652feb5f4eec007859fd20273d5. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZWFM2308581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829bcc17ed0b568e2cdaa79d51f6db652f2ab973fd450830a7816f9ad31e9cb5. 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/QZWFP2352292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8218bf4aaf9644f31d1b3bbab1f7890de593fbd16ac27bcfa2d5b40a68bc35a4. 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/QZWFR2307756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5760812345ac9032ae9723c9cfd26a4004d110ef60d59ced6c31e03721019429. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:16Z), 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/QZWFP2352295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eda97b1ba88c6934bcc86232e5ed316bb37c569a9c6d988c92a873e269b1477. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFR2307758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bae1372d2ceff22a51f278fdbaeca10a22403f81610fd56ab5bd217d08e256. 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/QZES82490032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd175f215a72b8d827706e5cf0d7750a26373973ba4ec57f22476a20fff7c40e. 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/QZK6Q2412092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949e7def43e03c356110df859ebd5be8ef9a9516e2b83476c193e490bd48c925. 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/QZK6M2499825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb600b62f81078f536e71f86a950d951a97d79b4af4be0f8be0c26302cf24e79. 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/QZK6M2448558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b697540a4246e58b6ea4b40c6bbad9f333705765ed2762ff31afed23dfffa7a. 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/QZMEN2440389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ff7c81c8dff7688dbcddd3ae525a8b89e0f25b66695ad9be596eabc637dce1. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZNWS2495900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620bae1b3a824a0d412588287fc679893405de0ca4fe75637c3fd85cbead9d32. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAZ2455113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3165c656ae51d92ef5f5703b5cdc602f0c9bdedc01a408d7080d34232e8041e0. 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/QZTB32493714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb97e60777df0c0fce1dc3f7f223c7ec6ad7063cee627e67e809f789f15732e. 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/QZTB32462588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6d48f9bc1a2c3366c07638bb114375769f22ecc031ce68a2f4871fb5f73986. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZWFQ2444839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8e7bca6a85b81472c371247b2a49df3f366305ae284986ce06649aead9235a. 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/QZZ7L2421079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91eebded89e718e39bd715c6784a70eb01dfdeffa208938b36007ba719833fc1. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/QZZ7L2421080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed14e1929f91bcffe2705037d48b7fa1d23481087fc0304668e44c07adbc235. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:55:23Z), 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/QZZ7L2421081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978acd18dbf5c7539b9d16fa1af3dca04681b792c4eeb59d56245e02c5dc5332. 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/QZK6Q2515622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfae57c0a04eeef61e5b5eff54b7dfc10f812ce48f031da937f7bf9a92e51bae. 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/QZHN92541305.