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 0x0e70de3d73243619a6093cd6b78af1e2dacc90d59e230952f6abf876d4d33fac. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cc43edb-7ae4-446e-943b-a8f2e6d1e186.json and https://artists.proofprofile.net/proofs/artist/3cc43edb-7ae4-446e-943b-a8f2e6d1e186.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 0xb735aa49868c99bbdefd67ff07e63554d867d899f4aadf5ac0210a40e76d9161. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRMIM2417886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce19afdfe46664980c2434e04a998b54f69133940ceb15bc04a2ba37776416f0. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/KRMIM2417888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80391876bedc3d8cd0983e66d3f3ff2e5723c745b4181e0032d930fa02132a14. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRMIM2417890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f9fd7bb3dd27e6b37103f476cb59786b9823212ae974370a6533943340c2c6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRMIM2417892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45c744dc7ac0f30a60e17e8aac578c6c7dc5651976ed66090908dd59d7e44bb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRMIM2417894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a952cffb68171419d922e04c94bb23b8f49cb5ee9839f1e31269577ebe9d4a. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/KRMIM2417887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1066bd4fe4dec3583fba4629b54f9373c4365fd3948fb2bc85f5a70de2b5ff2. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/KRMIM2417889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945240833455b07db5d0dd384b32446634add9c53c5bb93f8ea5f4267a9f67ea. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/KRMIM2417891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177f79a600049bfc9a80ef738f41ab1591fd14ebddf1a9585ea63ac0e285c591. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/KRMIM2417893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b96bbf206d57d9d319c75f589dea9778a66351e404651de01008f9bf17e7e5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/KRMIM2003489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62970eab83a8d067491a5c704390d83658df946e144c097d26523e1fc6898067. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRMIM2003495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a90fa2ecbe5cd17319706bf0461687f8d7d815fb73d1578b5df19920abd708. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/KRMIM2003491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658f97f41fee8038ea89a9ab88f60e05ab6c609367391eb6206f5bd29d3cfbe1. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/KRMIM2003492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d5eb8dece7c981d8f73abe59bbb922b119ec1c9003a67b30df910a1d5e9073. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/KRMIM2003493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22205e3632e5b8dcc60682abe18a2fd7ffbf37d653d17dbac551375e1e98f06. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/KRMIM2003494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2c1515df4da3fb1ff83a2ca9ae48e93e50e673b82ff06a9ec19e9397e2a9ec. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/KRMIM2003496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd059ff2d6d487a35b40a6f27c4952df253a942998b2a30f59066950df7b6d679. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRMIM2481559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842a14a613b7fdaa3fffd7cb5cb4dcafa4c02d4b44844a14836659010e957429. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRMIM2350514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cee822d6cfcd928b586f2960fd1fa12c1de7f845ee3013317d668451260e8c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRNAR2231217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018be489c5c7f01559622b4839ffac1324db73c1c8d44707690577abd263fcf0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/KRNAR2231218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe017e941aeaae6fac1fdc91f6141423c5671d6e5ad1e1c4234d5b067b1e94143. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/KRNAR2231216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf720d7c8a8087c0e55b2a1b6a02507ed3be5de278b2294f1d2a8d4adce1fe41. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRNAR2205074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83229511d964446cc18295ee519f01cea7525c7e986facc0d09f749efc9639c8. 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/KRMIM2240249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc845def6623c62f008db11b5159c2566fdba05b98611f5df54cf0ed74cc1483. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRMIM2217155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591aa898bc38b6240f1893e97ca3fe0ff25d1c098904c5c205d12dca6385955e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRMIM2133475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c8b7d03ac471f2a4f791055c8ac8f9c81dbfcdf949ab2b5aa12192002db6d0. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/KRMIM2133474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f13547eb19b182b7b2c5fc66fb885a22c6b314095558b257665c8f083213a6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/KRMIM2035666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc68eac888594f62f70bb4468dd0777a4913c4ca0af606ad1609c837535d10a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/KRMIM2133477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e22d5ddbc5bf0ff0cbf14084a1532d196094d567f5eaf13fcee99bf8cc9124. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRMIM2133478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a2b19b3212ad4f585e6c449980c8fb7b208090f957aa77fd540b76564fb001. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/KRMIM2026585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142dfaa9bc8098c344b65eccf48423ca8d9e8af0b9e3d47500b88aef2a086781. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRMIM1815857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ebd22b3867c7aa6baeb80cbf36b1c19a17f453d2e251051ec219ae68e54f01. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRMIM1815858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fdcaae1c9ffe4671b1014fc126e5427356885deb46ee71d80f95dcbe4d499c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/KRMIM1815859.