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 0x146af53249ce385cb2b552f60fbcd80c203c9471b06d20cce52c99a11da2afdf. 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/1b0cc088-08d4-447a-97f2-357c0bcf067c.json and https://artists.proofprofile.net/proofs/artist/1b0cc088-08d4-447a-97f2-357c0bcf067c.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 0x635f0f2647a29e861a4f96036897011f1100a58173cab3335fb901e322339541. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBLV61722961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10df43bae2374e1dfa47245bda955f3da0f81844f8ddaee6bdeab080ba620cf1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBLV61722963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65859d7efb75523f91f81689ce62c207d8a303cec48b1017add2ad1f3437396e. 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/GBLV61722969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2849628f98347c3b1ea8b5ce516d1fc70e226a4160958becd42af63b09dd5827. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:57Z), 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/GBLV61722970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb967f8e0f8a8093b622c02031cea6bc0232f8cc74d067b54da609ace9841240a. 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/GBLV61722971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e43f2cceebfd9347a92e105208fecb6cfcf2933f3321c9ca3f91d895f5501a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:15:39Z), 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/GBLV61722972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07137d2e9b125dd9ede1214cde84aafc79265802c4e8f75980a70dd3f6db5d3. 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/GBLV61902122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de9b37261b71051d6e3937403c26864b10fbd455adec710b52d6973d97e602a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:09:31Z), 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/GBLV61900926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183599aac78ee1623d78e12cad843948aa7de5b779fc6904793bec76a2ecb3a9. 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/GBLV61900928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a035b9fc45e721683440f04af5b4fb302ce67b5a1754d19ee394c785f738ac. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/GBLV61900931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf065479338d39d5eed532d677c8847e91a2d8362fe755b6b9b76a1726970d066. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBLV61905815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb597e2e7e73124e5527ddfe021d742d579f976e0567cb46903ffb46e5d1fb44. 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/GBLV61908133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28116042bf2570e33a29f84abf2a6fdbda26ae4da727e19390d2d618291dd76e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKQU2033414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ce61c632ceaf668916f3aaf60477258adf26f0bd012e986f96157f84545319. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:24Z), 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/GBKQU2042843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca65635085966adea8769a9f72f8193c186c52df9efebba132eca3b494c9dba. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TNA0E2200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6c07589567d9f64cb5fb9311558c73cfd364b3bd9536ab773368c6ec5a06f8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NLRD52013364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947af2447c04e45c26d536edca6e04ad33652fe4bfe52cbc9f3eb7d51397d521. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLRD52013403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423ee7922194e4f409b881117dda26a25150c343c6500745e22e175c362cc55d. 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/TNA0E2100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39901a2c3ff99caa4dff27d0b0371a72e3f2bd1e6412d4226298d36ca52a1a2c. 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/TNA0E2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2738dd1d6ef0fec57724dad01db8846c4743a0587505ff0b52b65a8084280a0f. 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/TNA0E2200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44780a498daa247392f70ae86f12ec92bf0d754edd134a2255326bc52bc71b17. 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/TNA0E2200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1185f719e82bc5ebe998dc9c4b5827983ba8611d63541e43321894ce34a5e7. 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/TNA0E2200842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa661db6415e603332994a936bc2cc8508a62da1601c864b9782077f916c6339. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/LBA0H2010649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4f5b0f638a0b480d6c18f3bf388740b4ed1cb86f08331cef5ee5755c545271. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TNA0E2200882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161f71502943f338e159fb59b49d5290a3b72fbed747e5fcfd330b16171e4d97. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:51:29Z), 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/TNA0E2200892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b01f52602e00c5859c20ce8f6e7435bcc0c3bcf2d281138565cb616ea01ca9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TNA0E2300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66314c786abf16b06ce17c948d76c07c384df40ee00a0bbc37cf0ddb8412c29. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/LBA0H2010234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c57313d8a7f2dda7e6e3f65d0e169dcd5e306aa0ee58c440ed8a12985d76e7e. 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/LBA0H2010232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ea30ba087629bc2403f6662826467d2ccaf6cf839855ceeaa82c16525e5125. 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/LBA0H2010237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201df0ab4e4524b0bd00a89753c7661c0890aa000085dde82938c2e26799fc34. 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/LBA0H2010261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd632c920c373b997efeda79fa82e1eff36bde31de141f8435f294cfd4c262562. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/LBA0H2010266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc533ba34ab2b3eba066845c0beab3a7da234e1b38a1fb74bba269a970fe9ba00. 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/LBA0H2010354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ce34903d4ca9d1da495ba6749e4e54426b140c7932bd418d84555239b1911f. 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/LBA0H2010485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc254cd565c0b7e731a3f5092a4ff39de05d6df6537265ce6227002b52abe1dc. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DGA0T2455045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12255c8bc997803f015f86b913f1fca0a1ccc3f3e7f4a91b0b2ce4be19df4864. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA062217415.