Göran Bror Benny Andersson (; born 16 December 1946) is a Swedish musician, composer and producer best known as a member of the pop group ABBA and co-composer of the musicals Chess, Kristina från Duv
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 0x320d0fe034b4d2669dd63f1cc4d847e53e10a5bc9674ac7dceb7075420f75e3a. 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/c93ecae3-1210-4e33-88d4-2217be006fb7.json and https://artists.proofprofile.net/proofs/artist/c93ecae3-1210-4e33-88d4-2217be006fb7.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 0x3fe03c81a47ebe31ee65b5c460b972a7fecaf809c4903f494e0bbd9e429cca3d. 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/SE22T1400218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7d18a8f3b68db3d490cdcff01757136572dbc1b42776ed646f45fc714c0f3. 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/SEAUA9601110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf7978651c2a2bc5826b75c76cadeb6e0f03f22094637448c61f999ca299e09. 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/SEAUA9601220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f37c0e98e740452b5ae927f163c34428954b801491451042e3bf82a818747c. 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/SEAUA9601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f83089c66988585ecae68e7c06b927096480307e36619a586e56e6b361f2b87. 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/SEAUA9601020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093bde6e97d7568ff0a70efb5e2bc1d1c9cb49ed58fc0b250e993f7a496d7ab8. 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/SEAUA9601120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3db2d6110416d499a77c6849db41e6ec124d5393b3474dd11a56d8d04c2a73d. 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/SEAUA9601230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4395c72cad1a1d2e766956c1c05cbb962ca1cd914fa83eea25d84400f9cb09d7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEAUA9601030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ceda201b530b86f48959e1da2675ae74e3ca2e59bc7e6eba9d9692a124350e. 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/SEAUA9601130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdc55e8e5058b3300e484b704d84a7fb0ffe42fba01102c22aee64157702965. 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/SEAUA9601240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c70855c77295f92c04f9987a48b28bd1a5d869860bb8da29c30b1e4c985257b. 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/SEAUA9601040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e453feeac140657327a890f5beb956b4235febab51c0d18eb7943c7e3c7085e. 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/SEAUA9601140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf47a0551a04e4451b715dd172fa719ed4068169f061f2304ac27dcb2eafe5f. 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/SEAUA9601250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd1531103d27c4e6c1451752272bca1ae9b955cfbee9feea026d55c108338f5. 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/SEAUA9601050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6533cf1dbb3836b45fc6e8233613e1cd74318ae3534e2d1d33f9a447f55f7c3. 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/SEAUA9601150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0d2c81afb09b2c240c4b94bc7116b6c6b470cb26e89fc9d0b64350463a55fc. 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/SEAUA9601260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87accf301d482663bc917b900039f859f68e47cbaf4254e216f082f43d0ea111. 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/SEAUA9601060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9043bbf21af84623d3a61e0d88510da5d90e0a0e221cf077fc4c4f838925ab0f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEAUA9601160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2f5373aa5024eb42dff01eb1c2032ddb8b3e0b32e52c56edf1c304926c4eea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEAUA9601270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee52163621c96c6f2ae958c3d3f8dbacc1025db5524537fc04575fd8fc6f053. 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/SEAUA9601070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a44e27f1ade0c4d291990114ea54774d1b35b3d6c15a1807a2d59539674d46. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SEAUA9601170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47314e8dcc893c61cae33069fee5f10c5f586e53700a066f3c24cf6304fc5ae3. 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/SEAUA9601280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7686e4cb89e0dfea2f24a5ddc2bf5faf1e3c5c1228e54028912b1ac1ec639f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SEAUA9601080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5329af68be427e9eb658baa3f52ea4d0e913e226464f6aff89b0d3be475cfa. 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/SEAUA9601180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56db6cdfc7f8ed61243f5f2a963c0870429cff85d1b7d64c5ba9e7be8b1201af. 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/SEAUA9601290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb460a86ea03005c0e00c3b152d1b4b9e34d50fa94d01cce456368409b89bb4e6. 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/SEAUA9601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15dfaf7e0c81c8fdbe92ed21d2f8dfbfb44fd3729d862b56b9e6d6610075bcd. 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/SEAUA9601190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaded233d7a2e088eaa988bdef56d5795729dc1f484c8bc7d0d45db6e9d19eb4f. 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/SEAUA9601300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bbc013333edb9ea05c373c2b416102fde69a60a1e184fa4eb5a375fb1ff4d0. 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/SEAUA9601100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057bae9494172fee483484f3f495abcedc8dc29b2a68a44c9684844aa9ac993b. 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/SEAUA9601200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2bb734580e72df189e508632c4df008fcb5a194fd0ad9a067aed2c690db6cc. 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/SEAUA9601310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d2a71849efec82ed49de276b6d3e13887eeea322d26b3785c06285c87d5472. 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/SEAUA9601210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086a1f26efd4b76f9486c382cf9f0da2ddd3609a956fb28d5ae390f932f4dc8a. 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/SEAUA9601320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4241711110ae61bc78d2df9bcbbca34b9c82c0120b7d74e21ed21ebba2328c1. 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/SEAUA9601330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcad8ee7e51caf244e01590ad8f4768fd67f7d15d56cfc12070d2543b4d63c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEAUA9601340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a8625311e8c497efb07772ba4959e2265480ef3f777e414f11f638997c583b. 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/SEAUA9601350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ab459e7344a2571cfb7a8a3e4d4eccb14bd3597ef4b7efe2ebd91cf3352715. 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/SEAUA9601360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38e09e72d6f38a3dda9aa64506b2ff7d98050b8a1ab25dd2144f5eda87ce08d. 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/SEAUA9601370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8744a5635ce8dfc5392c5793ebe3637bda19fb9f7d0af61958d7bb18b035722. 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/SEAUA9601380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2e25528fb226b1773c68b5ef46b5e19077489424f27fa3e0b22fbeb2f7f63a. 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/SEAUA9601390.
The Winner Takes It All (From 'Mamma Mia')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5c42049955b9c1709df17e83b3403f1d217ddc6e6ebd6b3207fc0ff7ea46cc. 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/GBAAA0201114.
Lullaby of the most comfortable in the world Cello & Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43616874a6297e142c7b10cc6a787c0502f0b771b9c0a726d27d953a722b7065. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:09:03Z), 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/KRY661440393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec035720dcc6405cfc1d10df89ac2dd736d51cd9c401707f9dd97a3e8048f486. 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/CH1609701404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b48e65a3095e3575b0055e0629d13ef651f4dd031e86158156f866b954a816. 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/CH1602211152.
Tales and Myths of Gothia - New Music for Concert Band - Demo Tracks 2018-2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5feae8ae079bd5ce5af9d23bd84f1e847b7e8ebbccf6283776da41f9f42977. 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/NODGN1807320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b76f2154875a9deb45d075711017cef1104692b53ded28e35ac9e5c4549682. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBHMU1300177.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Our Last Summer - 1999 / Musical "Mamma Mia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f7552295cb064f9291d7870e16279a279f650db8ddfb92f97adab65c0f41b0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBAKW9900324.