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 0x532b8080361e7677ba0216264de466c77a7e90d413f6928c284e67382ea16da7. 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/af92e388-422d-4f1f-bf83-d0672338079a.json and https://artists.proofprofile.net/proofs/artist/af92e388-422d-4f1f-bf83-d0672338079a.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 0x4ad9be80a797512adf95e1a25bae621281222d7246bd902286fe5d613eb1d457. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BREMI8900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3d9c5ac4b84e2fa8e1dcc7a4456762f715c97993d84c35ca8b6cfb83a803b6. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BREMI8900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d6f7f658b88ad8d7796eea6eadae18d65350c89e5523e83ad1bbb08653ad6d. 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/BREMI8900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442af1327f81ccd9a5c9e5ddecfafab753f6232138b21464f944b58622631773. 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/QZ5AB1864254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828ea1d4e348c03cea5802ce2743682836c5a15697c6f59762313e5479c35904. 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/QZ5AB1864257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e4193bd3c34b60d3b3b40e5dd5a36982de3b845da543f3b4672b61dd08061a. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZ5AB1864258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88141e4c50a9457d119f0eab29ea8d2f1348ae65f9f22413a0e998d870300ba9. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZ5AB1864260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c55d32709f8cb6734da2636b2fcf6e83407eb72e2a2b36cd537303a7c0a662. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZ5AB1864261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7730ed8d1627fe2e71d7898f775ea63c7fd982338293fc3dcc1f0c3bc04001. 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/QZ5AB1864263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeff2ec306fbf0c3522129c4454cb00bed67dec721a762c5f971783375e818c0. 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/QZ5AB1864264.
Alma Sertaneja - Peão Carreiro E Zé Paulo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad9be80a797512adf95e1a25bae621281222d7246bd902286fe5d613eb1d457. 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/BREMI8900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b3de732aab87b3252e5951ce235961be44716bdaf1a35919d83244f60fd176. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:39:13Z), 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/BREMI8600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082099258aae64dcbd5c30b96ba4107c8e11af8f0329e8d4f20a1a84e9d7c327. 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/BREMI8600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa724f96336d4d3e26896d7e947e50610250d957b67b891758eda1172792935dd. 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/BREMI8800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3d9c5ac4b84e2fa8e1dcc7a4456762f715c97993d84c35ca8b6cfb83a803b6. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/BREMI8900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81edd51be38157ba43c8e83f736391e198c3ca8ffa6da96d06514af39d4547a. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BREMI8800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4e0009b69a0c2fa5a58ba4119e9b7b5fd6290ccf074e2e96ff57b080e06d4a. 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/BREMI8600349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ac7a6974016917ca6636a411f7e1569ec39dde8ab31d509e457557f98db69b. 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/BREMI8100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b637ece4b31fadbfd1bdea3dbc5da572b8a388e285c673e994ec13a93f0fcaf. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:01:59Z), 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/BREMI0501493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840381b873baa52b26738f373aade76162019188dd06ea23480489554516da74. 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/BREMI0501494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa724f96336d4d3e26896d7e947e50610250d957b67b891758eda1172792935dd. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/BREMI8800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75124f4de5f9f6fb8c515724b14b9d3c3f606dcca60eeeae78a35b29820f913f. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/BREMI8800040.
Depois De Um Beijo - 2000 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3e8a62cbfcd572f78f2edcce3975c71eb2a2b536b231e73aaed5ca8885cc41. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BREMI8800311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5199ad08692f4e23926b7089ea6ce5f91b5e564f8df82057607b4780e2c047. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/BREMI8800307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8f51296fb135c41d4ece43df55f03b90aa1acf81824a7f574bcae7cc707bed. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:30:06Z), 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/BRACP0400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1ea1896d2d1699181a2466675dd6dae96aceffe369117e3cdf291709a04ef5. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/BRACP0400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caf6d86ba8c146af5bde212d1e79d1309d155058003f2ecc69321e37df8a749. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRACP0400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9b9b78e0366dda34b2e87cdff3f677a5b97ed3146dcd31a20e0d9a1f3e72bc. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:40:01Z), 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/BRACP0400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9d970ecedeab85fea902f874ce05febe3e1a0f45723ea8186b12555385759a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:49:36Z), 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/BRACP0400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001a5fd31dcd734ae912d4a0941b3de3adeea77b65e1080bce3a3d111784cc44. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/BRACP0400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f9742aa9db3e9de1c8c072caea3f0bf2bf116e5c8a528c7ea49a894ad38e35. 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/BRACP0400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29924f9003e3d7783ef1570e983cb2b8bea8bb4e8f2a7ed69c34cb614624ce9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BRACP0400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d799edd155715227b5e8e4e6b229b02a7f80952d804301c82df332ddca41659. 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/BRKPA0800738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5b09ada8cdcb8911c4655b95eac8b58aee228765f414290b3b6902f2686a96. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:43:20Z), 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/BRKPA0800739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c5d41d1d9a319fd85fa97909912ad79089e80ca712b72c240de37f0faa8e54. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/BRKPA0800742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7744ceab719eed9678aa37624caaf4ed729453a76f9c58a25b528272b197ce. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BRKPA0800743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eeddbc779bc30cd25acb1cc99e62b9a7ff84031fcaa59d88623f91defbd25a3. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:35:37Z), 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/BREMI8600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e13b04644b4e8374d5a28e9ee131b7874c099455bb157a1ec04ca9d12d53784. 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/BREMI8600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0855103b1295a23cfc1a5e694d65c191d6f2990ff989dffb8c6f36944ff0d81. 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/BREMI8600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eeddbc779bc30cd25acb1cc99e62b9a7ff84031fcaa59d88623f91defbd25a3. 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/BREMI8600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcb6dd62060a480db761c8f87f1d8fddc3e70cbf0a0e332ceac6a8f971e10c4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRLSR0500505.
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