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 0x6b69e8868796b209c583ed5150b0a4b2fbbd898161ed3fce79fe4fe7602987c4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1146119a-7911-4468-aab6-619848653ae2.json and https://artists.proofprofile.net/proofs/artist/1146119a-7911-4468-aab6-619848653ae2.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 0x135fcc61f80afc7e45a2dda3936b4f8bea1ecc85bc0beb34db290d2f795cabad. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARF061900255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023a838f64584b9f606b83ae9669403b7f049f49e91f0096d42241777469f33e. 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/ARF061900270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa17ccbe017318de74e63aecabc07115a620a21d842667df821d79353a14ffeb. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:48:01Z), 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/ARF061900271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651bcad0dd0df459c7b47a0e44a726d5844afb9948755007445931619a26b0fd. 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/ARF061900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d89fb633d3d09d375063f2d187ab58c5628155a2614b38cca112c18b6948b1. 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/ARF061900274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1049ae53a8fd38ee4bbc93f3be7dd9883057916a10dfbc2e0755f5a3534bc075. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ARF061900275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1b6cab160f89871b3bba58298bd6db2b40867dfd6f50974f0b15388c180e6a. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ARF061900283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb19c38f2ecc0d2f38d06cd3813312121f2c66038d5413e0b601122aa4ced71. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ARF061900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09132297593faa457ea264a60efd8a557b682d8481a8eb9c09b2a5daea410ffe. 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/ARF062000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86fbc228d8c14635acb06c8914fbca6212048b2d582015e745a0cd041a01e05. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARF062000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205496c66e8f13d2216f62220bf111d94a1a1a83e86aba29c827dbdaf970cecc. 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/ARF062000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bc44d1ae673c9cc3c12c2e09d180d112b62584b329078872393d560be4b8fa. 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/ARF062000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b00f7c176033d98b130d83ab66b865fe63a33df253115a228150218bb7dd0ee. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/ARF062000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe25a3f75ea761414bfe4f8cac372f33fe8ac7ecfc424ff540493d0f205f54b. 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/ARF062000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762ab82d8760e63ca361831f044bf038a732323134f6778707f581436d8d0ff1. 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/ARF062000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e40deedee87ca8ed2f3681defb17c0028611a9a33c56345015cf887b03ec32. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:41:17Z), 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/ARF062000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb72e14fa21cb7795296e3a3a19370148c2e1b7e53f3fff225a1945511e1985a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ARF062000117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02afba0c80dc78e0ec960c8f9e0345dcbdb0a88f0b748ae17170763b14489e3b. 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/ARF062000119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7537f316d42340ee890d329e8339669af6ae003c423a13e3843d3c9627185ee. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARF062000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531b6968169fed1a6c719bb76120e4ed5513ac2bf1a016653e366fdac6a68da2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARF062100991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8ae889beb4e963df9d0bdfbde15092f294095b28a71f63b36e6468278fa2b0. 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/ARF062101173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17335311b337313cf3618e72ad61552c70cc7d2164559fecac4b62827dc9509. 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/ARF062100491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcf54548a5fa1de2406ae153ca11e339abc2072b22c5e4b5bf53664a1ea3b34. 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/ARF062100552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebe5ff18ff7c3eff2aa961800b9b82484b19510f68393475f4772fbefddde70. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARF062100664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc269896d6744ae453484f343f839fc2c10f5f8bcd8f68ee712a8d7e18e43d99. 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/ARF062301182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b06768c3d4a838c0362aaed58c8b298536865b9023dbe50e53a81916c60d0b5. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ARF062301188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e829293fa83aff9a6d2bac975474963a5d385ec8d0db2f980b1c7dc302a600. 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/ARF062400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dd8a50e3ed8a1dc86a0b5a0bb0ec3aba47b4a2160d255d7e2488cea554fee6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARF062301181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183e0b3b5ac03945247639be289e0422df19ec5c1beed347d1913a38b63eebce. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ARF062301096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161157045c9b36410b96ce4cbc0cace294fffc62f0fca46d54355a13c0f87a6d. 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/ARF062300367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f88ea18f587f56ea6d86781dd1bca5aaf5ebd90f180623e3787eb28e4a37c6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARF062400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9cb2c1ccf09f597f6304afbff59178350dbf27f3520aee85127a52dca7b488. 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/ARF062400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2e547c0e5db97d29ffb917fa0dabcf56251d4bec6c39464ebd7fc663c2dc3e. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ARF061500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ac34f2807551b2b3f8c2f6638e22b45c644821dfa6029ca016d44882048e5c. 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/ARF062400576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af3c3a9f0bdd541678ae368cae9750e83f5fd8ec41a11d6f498da92c45e3744. 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/ARF062500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dbfd4b6f83e0adb8c825189027980272c5fd5b8d7d56c41b89fc746429f1f6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:38:57Z), 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/ARF062400824.
Cante Com O Reino Infantil: Música Para Toda Família
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60302100059c3ed03a670c4a7d96e5e6eb2d38f761f867ea15d5b45982e87751. 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/ARF062500298.
Cante, Brinque e Dance com O Reino Infantil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b212cdb42ffe12cfdb16b7784eed355cfc798fc3612a953e95b238f14ec5ea9. 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/ARF062500853.