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 0x19ceff39c7c42405e688b8f0007ec092e01a345db3831f71b6b2a0a6e33aa911. 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/42abbf26-defd-44f5-94f3-4e430904de42.json and https://artists.proofprofile.net/proofs/artist/42abbf26-defd-44f5-94f3-4e430904de42.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 0x3174825864b00c1e7ddbd809e19243f20624344de2bfbb2e64e8bd5daacbc908. 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/TCAIA2405580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80e76db9e12c55478452ddce5347b5ac6a85b8158ddb8e9da6e754a2b0ba6cc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAIA2405587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9793414d08850428143b421b82cd91cedd1a7306a5c57b7d18350eb97adf4734. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/TCAIA2405594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48b0b1d8626a108befaa6a6755a87e05b1fd49a6d0ebbabf9c3923863e524d2. 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/MXF069501041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7def7b715fd6e3a50ca64572033f4ad5cad3bdcd09d22c2c9b8d0944a3992673. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXF069501048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8587d1c46c365bc9fcc5eb814b327a5017ea35293d799c457728c5d89420707. 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/USA560871507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe528ae8ee5c867d8986c5a56908f659656e5ca4367ebe05c96bbe47e40bb943. 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/USA560871514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d091454222bfb0e5d58ca53268a707dd85ddc6595c38f94adf80deb1a8fa74. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/MXF069600365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49698afeebd0f4730b93a595ec5b4d555527da2f0f0a6b448564e0e6f94caa9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:16Z), 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/USV351431190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f7c9f52a9f6494a37511944d29a52a3dabbc8534e808b1ec49b0f56d175aa7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:39Z), 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/USV351431196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda10cac6bf3bb57193f70ebc2704f256f5a879b5b88450fe9ae3833ad3e0d2c8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USV351431197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbff7eca1484a8d24f1e948be762f1a2f8daedae94b655c54eec9de1a8cf625d. 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/USV351431204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984709f817d40ba4342ddf7f31f9fdcb7aaa456869cc4519ec09d4362083e5ca. 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/USV351431208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a19a6e403cd021ed18f483612f50e56bb7f04b8500c434ba14ad27f689a97d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USV351431211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf58ea07c04c893d5f86ec4cc69f8f11bed3b22c9dfc70dd905e14b3848556c3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USV351427017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90058581d774f75fa797c7bb49f7c1c955c68147039a4de8ef52481b682f4ee. 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/USV351426974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9684659c6dcf4840381f51079f232ee42462129683ecde378f3948835e5d925c. 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/USV351426976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421492ae51b4fada3867d7b18627db1a6c150f86be7b2afbc80dfd23cf8e04a8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:14:18Z), 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/USV351426978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660253d17c5ace7343615f13d50100c6d33e319fd93d7af02a42a7da8b3c0f38. 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/QM6DC1665066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4066f8f48f69472dcc02c751714f6777b3405aac8be38a32b33bc8f8da26ae5a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MXF140100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98b2863da557253d51bd1b1ad904eb6779f26545d01165bbc42724b96f13d20. 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/MXF140100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa774e29604ec21c67d78a2ee070b3401817ef5c576ab0be4ff2c3e3a200af98d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MXF140100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a068c515894e24d055fb9168052a52f7fec3f826629e642b4830c1ef27a301c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:22:32Z), 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/TCAIA2405291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94b3845a8d24b782e943d6e3eb45078060a61d0819c294abf38a8c883365c5f. 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/TCAIA2405298.
Solo Esta Vez, Con Sabor a Caña Verde...!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13735206537d475e7e0a13026119bbef9127b05eb1c63b65d986dcce79139c36. 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/USHM22232832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779c9c24e93db6d536cee531dec3fbea75e9874ebe71de0a73782b4ae1205343. 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/QZDQH2259110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e6fc28b0b528b267b743aee2f3f3c2aab86949670b67da02873d22e30a9f5d. 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/US3DF1102414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fb6ef6d68a47e24fd458fdbd2cb1b74b6e564c11120f0c3c50b9323c82c4d3. 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/US3DF1102416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b6df57ba8820a670914dba5b3bb86682f4d0ba1b70650532dbdfc426268182. 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/MXD481811383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864131a3baa7ce1a54135dbe0df2f1b61c158a1ae30ba1258473cd33a5b07239. 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/QM6DC1352916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06784ca24922e797c0e21ba676ddb0c48b5843b76d49fe608f47a59802f2072b. 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/US3DF1424033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad852c1664e7d0c792ad75da6b80e7d2e8c40e67542fafa3243eb584be49b80. 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/US3DF1424058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe885ea24bb519c296c331104f52e1e5ef7985c78f0460f59473c0fc77493cf63. 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/US3DF1424017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b96093bd91f77774710d4734fab46052487d16c90c7f89af4ab2f6a876673e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US3DF1424022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ad6af2101ca57e009c12b56ae8e449520c9a7ead9f27374db55b69598ff4cc. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/US3DF1102418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac0b349d11884e215db09cfb0e42d1aee0af123b7e6c55a3c5fa92f15c33fb3. 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/QZDQH2377412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5ef0b25b265e3d1c0431438a5975e55bffe857a9b7fa5d9cff5d17441b0e54. 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/QZDQH2377416.
Cañamix Vol 01: Tumba la Caña / Achilipu / Tu Lunarcito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d88e74177d0c02b71eb0f933bbea3bd21bef5e33f0190028c26e6156c46f47. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:01:05Z), 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/QZDQH2418968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9539ee7344f8330126a1ce899f299adf6935ee6e13fb92137a26938b2681e34. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZDQH2442229.
Cañazo Romántico: Guarda de Mí, Te Necesito, Quiéreme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9024fe12b0e2c8c4d31859c662b83552d8f421cf4545100b61a8cd7c11952b7c. 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/QZDQH2442230.
Grandes Éxitos con la Banda Más Dulce de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd547275ab687065ec36a4135833e1d235a5d836db0943e87bf10faf5c5771ba0. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:52:10Z), 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/QZXLZ2543341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa153721045fe4e68b47022ab3cd6967cf60d713d9e71abe1c1d6e9ec603f47d5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US3DF1424045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94c296a5eae923318d1a3b56484a5720c4461132a2b294b1ec9946559344064. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US3DF1424053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a7b993f58fab4d0647d895000b44e0af4da03dd2522450ebac8f2804808404. 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/US3DF1424063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43ea3cdbea1e76f96807dec32737a19e02b7bd4adb40c4a0c63ac659fa1f299. 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/US3DF1424060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274c936e4b1e65b89b32dcecf5012337a678eb5a95b97bb6592bb0a0b62366b0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZXLZ2543342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f647cae2ed48b20c3dee6204b16ddd45cd11559bbc2523770fe9b399abd156. 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/US3DF1424069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f412a138d9a518fa390d31a30089116aca8d9a74a9df2c4488651054cd4052b. 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/US3DF1424057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8c55c7eba5fd6cc8d9afdd619390ef4a3a94993a709d47b6c73e0680d35d8a. 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/US3DF1424028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a35cb100152daf9425010601b683d681c218715836fbd58ae013a8d2a47d1a. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/US3DF1424041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4915b38a53a1cb8291ac8142e5ec21133127c9aa1f672077515e3413166d9b90. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/US3DF1424027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892e5cba5e407475e387329e827549a7b24d1c56f5ecd8540f360650cb8da925. 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/QMFME2107227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9c6c1f09edb68569d99f4dfd6023b5beee5f56f223286fea968c54f02c3d93. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZ7361900237.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4b5e1191fc54b4263f948358b0f88d8ce854c6af350e49fc3b15eb52e20475. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QMFME2107232.