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 0xedad442873eadedbd566a023bba5e8007abbe3b973807164c6d96ee242473b8f. 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/b5984a44-7b22-48f7-849a-1c83b14ad5d1.json and https://artists.proofprofile.net/proofs/artist/b5984a44-7b22-48f7-849a-1c83b14ad5d1.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 0x14e1ae80e867aacd78e0f065dba43c0194fde24ec96408f972069c468086b207. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:34:22Z), 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/USA560848239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96730a3708e7ce99236c3746c086e8dd7e08603e080bfbd109569659e91b83ee. 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/USA370903414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84537b712293ba3357c509f62c122a9899f2ef9440e10485a647ee40d507414. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USHM91410759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf86bee93916318f2904cfb788a5b6224488695ece7804ccae1343b1c25550d. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:37:48Z), 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/TCACM1683681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9471a19a473d8d296771ce22b5b76f18768f3a3c96fc1120954c35df6fd4931. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCACM1683683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dea702ca46b7837683799f4d665acaec0ca0f5ef6113f8c8bbc916a8e2fd89. 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/TCACM1683688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe657b1fd096c90ae1068d329b9dbcaa226fb7a82462a7761e88b6057d6c239cb. 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/TCACM1683693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fc903fc3207b05a541b03155ccc388d0159fbfe1a5945b3ecddd1c46e929fe. 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/TCACM1683694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62e8dec5c414309c25a8cdb7f5de744eed244e587d6bda542fd4ff4b1326976. 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/QM6N21753820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fc6f5bd1a4c6afba9f55315192ed6632de9ca58197e65d7cad118cc5a97780. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USUTV1000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b58e12cb9d8068191c4c357f99f41af07acfecbf9a1afc06e7de97813ce1fe. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/USUTV1000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fae5cd9c9738f776d539340b7796bcb982eaa7b2dd94b7fa69a8e21e930b188. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USUTV1000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9a68d4e7bfbe8d8b0fc255af178479ff65538b2a3c33e903031864ebea2a4f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USUTV1000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34121c7d35e8a1ae59efd2216106ca7abefb1a08f1ca4bc893ee980dc09635d3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USUTV1000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfea88b8c17384baac8b0f23d1269229d21d6cbc7825f117ef4368ea5e9d5c6. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:58:38Z), 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/USUTV1000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e76675f74aa8f4994294d35f296e0b993659f522fbda0485d28fa21017fd07. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USUTV1000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083923475ec929e52e15041f164177221ce979f881159845bc9cf75f05de4e62. 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/USUTV1000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572788878ee677f38aa2ad833e933c1c7576f74aa76c1e3fc2c80f7fd53def4c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USUTV1000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e5f9d2aee9f4048f56644998688146475c8450e794963e4d5799ecbd8f7637. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USUTV1000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28ce9a784f45f0c4c7398014fe50e369d93cddb3c909117417852d8eeb42637. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM4TX2012120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccde2057ef85c965e7dcf00b85ffa1d260566fd51ea5e432c1f79709698b778. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QM4TX2012121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9360756fb462d800eb340a4e0e87f827d73466d6c0362bfe0439914fc6a3018c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:07Z), 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/QM4TX2025416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677265c790f5f104f5745f367792977b6a5fb6ac76b31f1268274d11caa4f9f1. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QM4TX2025427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9365d334fad38a5269f701bdedbc583937eb7c1a4838ce45ba61ac0efb0f22. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:33:01Z), 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/QM4TX2025429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dd2742774cf459d9413d3962cf79b27efc3a268be41526b37ac204d2f6e793. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM4TX2025443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176447b5b266faccffd0d21acb710cb8b230bdda53791f655925e1bc44446f30. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM4TX2025444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab3d6aef594656a31bbb727cce8d9385ede505a4c08690d1af36b1260815c4a. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QM4TX2025446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975fbcda7d8a9f91d7303e925b90abb20fd7e6f12f2b8ccd8cea24d9ed37a626. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QM4TX2025463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1a2862019fe9512f765185db5b9047c714817e57d21911f4242ebd5d5c63c2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TX2025462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf523e8abb18ff9d24899a405f3a82b69e83885ab2e38ada46e10013ad8dcf1. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:19:25Z), 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/QM4TX2025464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d103b21ae3ad0d3d45ca54f1709dfc2142719308280a425799d3f640eb5e7ef. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM4TX2106225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786007459d033d3cbca5477ab46b126bbded188f224660d7bd0961316c658ba4. 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/QM4TW2248772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9143f79fc84e4520dde686feb3ef46c6d7ce277fe8eb8be664c36fd8bed0e1d7. 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/USA2P2314625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9eca6668897e51a19199a57db00296788c8675470a68eb49f78342447715eb. 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/USA2P2343275.
La historia de las burras (la chepa y el judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafda26bd2339eff334b27874c48570bdc6a9afb8a34cff88fc702422ca8d834d. 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/USA2P2351410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a671e3501a6fb1f449ea01e854479ab5797fcb960a98488a31dda7fe702542. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:12:50Z), 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/QMBZ92579340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12daad3d107de0d996e75316047a2ec2878279cfcd1c579ce537b0f966f5771. 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/QMDA62566173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4176c2507582a35a8dcc101fe41e0c2f485789c380d0f81b1ff8dcf5c14e6111. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:47:46Z), 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/QMFMG2512435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c111544c50daa94a9363558ffc6aed6f54cf32355e08d05ec382d9f269c5de. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFMG2516436.