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 0x8fc24175e760844146138df0d241253c321c172411bfd34d3860748f0eed8435. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d28c9c9-791a-47e8-ba60-e02f2a2a5f0a.json and https://artists.proofprofile.net/proofs/artist/7d28c9c9-791a-47e8-ba60-e02f2a2a5f0a.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 0xe932b1f7541fd2e6da9dd43c4147b59941040c86c9a905e93a6d3a25210c975d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:20:02Z), 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/SE5IB1800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d2cb76dbc919f2f1e1713c07b19afdc4c4221192353f0068bea5f0431fbae4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5IB1801127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bfe88cec076bbcd2d714f796d7731389f8f38c7d682db448da2ffc3df8b7cc. 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/AUKDT2402690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344accdbaeeddc1a555f6e0ff30bb959e4232b51971a0a52b7dd230e7f6a71b0. 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/AUKDT2402691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd592a79d95b85888f7d0c2696498261e693dec86b3f20ae2f5f6c0c205df0c07. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUKDT2402692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb710434e8d74d3174d616472656fb0860a42c2bb7399b46b60fbadaa9e3eb1e. 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/AUKDT2402693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fbf31e1739e3827efb2eefc381e17c7514756b9fb3f72733fba90527846735. 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/AUKDT2402694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93dc05b8ae91a696c0c74228bba89f1c4629861f83091ed47ce0a68ee1f7f70f. 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/AUKDT2402695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7443496de064f91422787cfd312635ee3d84fffe9ef760c1781bf55a69b755b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:22:17Z), 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/AUKDT2402696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904e1e0bd48ba44989faedddf24f4c0d0dbc4bd25ae827c4e91064b51bc415f7. 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/AUKDT2402697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb039af67b677b90e5d8f990e9a2f8f0f63e0f346a0d1e411117f7443ec6b88. 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/AUKDT2402699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0809c71b4af6a519cc2df5bc5dedf0cb2095ec9e1d48ae28d0239f150446a128. 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/AUKDT2402700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7271b241aee81c2d6bfed1658ca01bf5cd3d7cf5ef2b1cffd265efb2e3578f3. 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/AUKDT2402701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a3be837549669972dc0d370835870523623a0f6d0a17a88e13358a2187223f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AUKDT2402703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66063efe541a4cf30e418b5d859e6a3d641f0f4f7f4e5c937c2bf208f917856. 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/AUKDT2402706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3066416efffcddcb65eb22b46554652990ccd1d3636f6b5d07e591b1dc6d08. 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/AUKDT2402707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b40ceec78b6390e24f8813937c0821e2874327eea4d1ff667a53484cdade314. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/AUKDT2402790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0fb5c25279391333d699fa1b5c77a56d8e640a70f62da7fabfcaf4d8ce0cb1. 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/AUKDT2402791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b971e7f0316622c1f57425df56beac00af34f70fa657223d5b67798f7cc32b8. 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/AUKDT2402792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161f2a9f5d5578d6328f7a325cf0e34d695c1522ef29e37d993149349ad8cb0f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUKDT2402793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c06347ee0931040dc65c6214f9e5a5b9e1c5c7233cb4f3b832e949497f7ee60. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/AUKDT2402794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea01fedc0fc916ef5b9f10855a9ebed5003629be853c3dbec0217401f3773bd. 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/AUKDT2402795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164da094d3451f34980f3b843db6fd4637813121b90a49332aeba7febdec66a6. 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/AUKDT2402796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b8e7a4be574a9d264a71c7c6ae08592d2ba70096b20484bae817a7a33c4ac8. 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/AUKDT2402797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bcd6ec9f4a4333cd2c17c13c3b346a8904ecae181a1f5efba2b94aeb5c23a0. 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/AUKDT2402798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd4c23306b513a02fd5d728bf6c1e0dbbebf8ec7762e3564e1ff4a962538184. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/AUKDT2402799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a280cbe25c457aa88c09026aa140cdf976ccd53d4d462d511b0d305d6b65628. 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/AUKDT2402800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3e8813d50d0b2cca081a8de7058627b9841a6a0783853af2c0112c3200470a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:10:08Z), 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/AUKDT2402801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba08f059e7799d0d28bb969fce562636f03ade4653f8456027eabcb4cab9924. 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/AUKDT2402802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332b0c2c87c0bf874f633e86e6d36cb41fdec8ef01388ff662a956dbfdf9cf0e. 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/AUKDT2402803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c32aafbbd63b41bd324c6aaa824f43b8267551fb1a12ded4b2a6bf2fd1f1862. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AUKDT2402804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92c0a9edd5a7aaaf709a25718ca9f6b23a708247609edeeb5cea41e784b6a64. 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/AUKDT2402805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec3b6813801685408e512471a25b2249b7cb455e27464f7fe63d182f1ac18cf. 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/AUKDT2402806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45a781d94927f0d3b886fd10bf1650d28bb7ff1392141d95cc2ccd8d5a67d9c. 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/AUKDT2402807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e7f116890985fa8e5eb234c01c8ca522d0f79544e79a70b488bdc3a3826c65. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/AUKDT2402809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27aef175b311bf4dae565de64528fa568b430a3f83825e263b42e4bed0d8d0d. 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/AUKDT2403043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd212607f29042349d1208da8081059effc5d482acb0c2695e9532b4cb4a60198. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/AUKDT2403044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0428390e09a87d6c16c3c3b6465453353b97a7c5e1af12c0c6666828512d3c41. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUKDT2403047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf433370f188d7c926ebcdc2f4e7c3d8be1301048288ce74d88a294e61ecd52f7. 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/AUKDT2403051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3f9e96022cb3a2d6adbe8ec5785bc0f2bf04b30fa218a846e602fc785ec241. 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/AUKDT2403053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832500fcedbd2b5bf17490543128eab998fcb685edfbfbbb4bfc39e570e3ff9d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/AUKDT2403060.