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 0x65be82044cf1949e8f3e919e6c13e6e3d605c6a7d279ca5c559e79e9bc85ad48. 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/08035ab4-d850-4930-9a59-fc78ddc0e45c.json and https://artists.proofprofile.net/proofs/artist/08035ab4-d850-4930-9a59-fc78ddc0e45c.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 0xfe52dfb991e8da8184328c626037bcc2d367588eb3d359ea7b5ba3ba85b8c14d. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZMER2145290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec30e5b728bb8df0d2c2797df1cdd71e6224bdf844a8dfe713f224bb149a5584. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:22:37Z), 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/QZMER2145294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0409c937a2286c1b28ecda6a399f8a8c41a5b15b9722d411cc922f0dd2e3a9d9. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZTB82285080.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4e184c1b8dcca651b1944f5684bf84393fd06b05a261b6df1a6e0f0d755641. 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/DEZC62457097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450f08015dd4f78010a772aa33798c82e37a1259243450a7f470fb387266d156. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEZC62457100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94b35b6351f051ce03ee376f861d9bb3065c98c4c77cde7e184b2d3ec42e45f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/DEZC62457101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40da6aa7298167083c1b3df3e87d140c5ea8c09466857aa99d0c79c65b2e97ec. 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/DEZC62457102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020059b5b56a748e57f5e452ba3e9db09c87d4e51086bf8cd9b7778aea7afcaf. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEZC62457104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db5bfc761685d67daacd150088c378fab3ae9267996f38d0314b3da0c78e990. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEZC62457106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc7e9f336aa8e1b0f694940d90835d836eac3774bd34d3c50272ddeeab749c7. 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/DEZC62457107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784fc170f7633f6dbf5a82e0420af609b75b6651f6f4fbdf48d59823dea83a3c. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEZC62457109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68708b24619904ca398f310cdde17c9c828ec2cfca19330ebcdb3874c5a594b. 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/DEZC62457110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6e153358b47758b607883c0d22f563d54e7ddd8540d882c8ba27ba02e757ad. 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/DEZC62457111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779b0dea8870e9bdbcfeaf335d65a5295225226f9b7898a8e5c390c332dd13de. 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/DEZC62457114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e57a29ec010033783d944a505b15323fc8156f813de7a9036b177d0f964ad1. 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/DEZC62457116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa994917fe0472fff7f9fc9d2e4b6b01fb68abe4d13bba6f0f18884be5d99c8cc. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/DEZC62457117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2499e405a5ab5b1f9a078074d36de796b80694340a0db4ed834a72257f1584fb. 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/DEZC62457120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aea3901997abdf22d0f6ccb3baf04aff670340737b1fc2d73bf4045ea532428. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:55:15Z), 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/DEZC62457122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd487f576193bede203e5d89c059e6a2adca23f0382f2faac4b5bc47e077d742a. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:54:30Z), 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/DEZC62457125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea6b27b9adc8bf0bcb1f18ed5291a6c5bf0a0eb5f6f871c6f4ff67b9ffdb96f. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:42:15Z), 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/DEZC62457131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc57b4f50bd23796e4363e479777cd5c0b505d556f6b0d411dd00b170cf29070. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/DEZC62457132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e557f55da8b1b08b7755c30b7d5556fb86eae2c0c29f873821c17ebec81f06e. 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/DEZC62457135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3f9bbe108cc7a45fe4dace9f23935d3d9e6fd56eac28bd755b570ad3d7f240. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/DEZC62457137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ead8f4dd89a6b11167ab8b1018e3b6e191ef6390c2f9e6258d100f29681a04d. 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/DEZC62457144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b45924b691dd6d23a7eeb77c32a4586a574a58c89db73f7a71db5537fd2df5. 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/DEZC62457145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd1525d5e9c23ae1c116eb6b0ea896e3648a9ed3690563e948cd0cb6f09bbf6. 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/DEZC62457149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be47da7b1caca9cf06651017bf031b059faeeb530552398cd33207003035a32. 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/DEZC62457150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b234fd913f973307d4cb25c0fb308af299d7ed07a91e98811d0297dfa001cd. 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/DEZC62457158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe907152a67a48760eec88c053c1198d78d447c0340c22434df94f3e85ab61543. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:15Z), 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/DEZC62457166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14288c4c82f0edb2a0c474b38dcd1a377ac8f2d66c3060ee7c37aca3d9f93f68. 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/DEZC62457170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7922f2317d036812b2b893086587cd0517046723de2033ce65fd494d78c9df8. 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/DEZC62457173.
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