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 0x6c30c5473acdf42d9104c2003af9182b6fa77fe73aaf6e109bf9b4a611f12eab. 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/f39966ba-378a-49f2-8c80-31627723d2ec.json and https://artists.proofprofile.net/proofs/artist/f39966ba-378a-49f2-8c80-31627723d2ec.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 0x26e6bb0b70e58a113f6f6cb429a21514ba59f84e00eb53d7e00647ecdcdc6de1. 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/QZ5FN1765319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255ece78c65c0431c1d3ec92bf65b32932e957cf79731034053b3cb328c455da. 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/QZ5FN1765321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64490b3bc4c77bd9befa570fa461b67b5e3f7c5ab773bfc22c3fe852d569adb. 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/QZ5FN1765329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917d7e595d2c82acdf8d0329d7732f62f6768e5ac99b75b71e25596161d284d2. 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/QZ5FN1765330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec6043bd5d4869c8edd8a5c09fe115ac47036c863c74b060658724ac3ae089c. 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/QZ5FN1887574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa308b1e9c1a08f04eea90d2db02a9c1774a2cddc643fb7151dfdf7b6d0e3835. 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/QZ5FN1887576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e9e91a6b13294b520502012b1d1da605eb0590b2a850b9a224146d61e0fdcc. 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/QZ5FN1887577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbcab54eab8d6bf4d5b5cf11a89bd9b545859eedeab5a95df0bf53a37829184. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ5FN1887579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499ec4273e03f7169c8606157e65aa6f86533a8f3a5936e5b769af84130c891. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZ5FN1768300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae2d3ac638f1ff46277c05ae1af25890fd117f2edd99f7094179f34cca31d60. 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/QZ5FN1770311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c038addcd91a30156df7c84730260809f8fe5b3b09d2d078ba77739fa7571a. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZ5FN1772712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b11dc62d28b67f0845d0856e5d6164bf7d743b66fa12f13d66efffee7950f1b. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:46:53Z), 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/QZ5FN1772713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1e439e2cae70865f49330a5e81f44b89d38bd227a6b9eb1ee75534374e6688. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:30:29Z), 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/QZ5FN1772714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216a36f83418b1b954fda857058e85717130c5eec49944d2592db3b8a3c6e471. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-17T00:00:20Z), 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/QZ5FN1772715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ed13ba8175f24d15bfa29e7c3fdde6bb911d4f36877ad499adf2a5fe09784c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZ5FN1776960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d2c5da6d8c76ad4d944c2e59ad49962eef7ecb34e1058169153e680251d1f5. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:03:39Z), 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/QZ5FN1776961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab94bc7a1088f3b78cc46dd8e292fc5510b5cd7bbf991656f995ef85fc84f3b2. 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/QZ5FN1776963.
Grown Man Information No Hooks Acapellas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c719009077373b05275ea6c4032c7a9c3f0443a613903d05e9e2df3cc3d647. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USLZJ1909346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc196c4b2a536dea24873b7cdb58ab02b81b802f147d0c2bc4a150f9000e2aa. 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/QZTRX2134545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc6a81c4232e47eacc337d6d2bd21cf880bb2e847bd6573e0acaeb0cfb22284. 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/GBSMU4248411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c79cc22faa5755e29ad41a5d8e7f7e3609b3ff32368a279661688e22a1d1ac8. 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/GBSMU4298765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8fdf7eab4e85a6453ae24655fe44b6ba529ef0cb72031b69177bff30a5973a. 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/GBSMU4298952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a8b3aeae8fe7177564d853df744a3bacbf06232c8eec854c52870e0215e358. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DKD3Z2110029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded517c19f2a9e1cbf18c7a409ca10066334b317d1c13538ae0e0f037e99a0ed. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DKD3Z2110030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31277fba3417da8bc99863095b14e9a4ecaab127fa70f01edfad2cb5f477802d. 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/QZWDE2357891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7a84a244339ecec6d9a79cf11d0a6af212ce153f86000980b2ab2f64ac2af2. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/DKD3Z0023395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e63ccab9fc4ae64e004ad75ae9a8fd1a89527c37f3de2663a72f15f945b9596. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:34Z), 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/GBSMU3843995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10cc04cbb8ff575b57832c7b728402730c769a2c4aa2f72785af5970f76f30d. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USLZJ2585495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f9bfc05f92cb745af0052009b7ddc39c1154490c5101e6d0d217604d6e8919. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USLZJ2585535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c407714c96b1ba87ec9eff5e5233620cc6b59d4f59e212a777addb863b9f20. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:05Z), 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/GBWUL2574074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f70b73a8444e9e9c8202ba203d25745ce28f99177cba259e3c030107fd3aea. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:59:47Z), 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/GBWUL2574077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749702d8a1fcdff78a80e45083d87e1a37e4cf1da74644f6a349248b3d9e1a2e. 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/GBWUL2574080.
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