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 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 0xfe665241474a46f3339bec1d2aaef23d5a1bc6d1bc971c32f5b57bf38c966809. 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/9d0089a9-9026-4abb-a1e9-780c092cc4be.json and https://artists.proofprofile.net/proofs/artist/9d0089a9-9026-4abb-a1e9-780c092cc4be.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 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 0x337accfb8d311dc0522d9836dbf8fc4d5ad15933fc4e8758113b4f1dcb7c9fbc. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/ITB881602970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa37520b7d62492f192289a3b42873dc96cb04c0128ee5839ca8a8bcea596b38. 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/ITB881603574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6238b048304c432398dc6dddf127678651b5514a81c0c2e62827b56617112749. 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/ITB881603576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbcee82839914d2223719ced33942b6b35ccfc34efcad72560539668aa14c1d. 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/ITB881603577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1f40c5d94e898392b11b24a9c7b3ac805a61f780fb162280b73edad9917c67. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ITB881603580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f874146d8e5afcb5789bb73de3bfcfbf16695b46ecb62dfb25f8401c187f6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ITB881700789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a864c2514885c8e07cc9e1d7cc412b184644e15cdcf97fd842b63df97ec8017. 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/ITB881700790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092fe3c81c044d671abf1d7422dead9a792b04f4c8919dfe0f3238c0ff294597. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ITB881800053.
Ai Você Vai Saber O Que É Amor De Verdade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406991afec2ef3b467f2138d8ab290510fbb226d4c4adc14bf13d13224cfd0b9. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/ITB881900770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8c1f3c87dbc9f38970df083cf810d93f2a537d1e58e2ad891b9c5ac32aea0f. 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/ITB881900771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72376e3c86bc79df9f86b59f675ed211d769e4023925489bed617664565e479b. 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/ITB881900772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167af4a0aa24e2c3cf777623c3dcb500b1f5debd2bc2d9fb95434da8b0c67a23. 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/ITB881900774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c26add75f32b3751dc69f52c43d88c80fc92e5dcf9288842d7b850d6a0bf555. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/ITB881900775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a6c13b1ca8161a8bcafd7515785841ba044c220a192f18e5349357927bfa7c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/ITB882000749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756e589ee97ae851b70e3dbbe2d2df65793aca07a6b283182dce278364668a6a. 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/ITB882000756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa713d10054c43edde1ac8986c3e3f0beea1498424aeff117303fede12cf44fdd. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ITB882000862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bf867817c0b37bda6c40b6af378870d9343bc60847e40c0abada3612639de8. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/ITB882000865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd98dd270b0d10d48611afd331b67d093829932ecd102687913dc8e56a3e5a9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ITB882000866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff054b01461f998a3557788ad544472a9a24f409fa7c4db28f2d3bacc3c843b7. 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/ITB882000867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac277c3cb3c7a5f8c19dc82d9e0807a90361aa88bf9494d12646641241dee0d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BCGFU2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd810c6fc269e7850887eb7854ae4368e7b106e12ba11bce680bb6fd4f49a2e54. 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/BCGFU2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffc2b89249cdadffea3eb719905bf6c66f50c0e6bae6310c0b868cd9e3a6aca. 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/BCGFU2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac44b28ec6e5e5fda13e7bfc3dae65ad9301a3ace228d33e1b68e1bbbcc2a7fa. 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/BCGFU2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03d2e7ecad64274ca9b0c375e86a71ecb9cd481a15e6306ebe4003be7a7430b. 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/BCGFU2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4cba88253136c3b2d011b55f8a50980507d71a5c5438c40f45335eceb65d18. 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/BCGFU2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dd7dfbfcd4960770742fcb8ee2598c65f8a369886a10a5f5455ca367a38788. 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/BCGFU2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fb285421d0b014c157f7231b651b2e800894aaff999779e17fa294f149a87a. 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/BCGFU2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b0f4a5b31fabd69b58d00d9810affff89d4a77c25da92202c00d0c6f19f29e. 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/BCGFU2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dba071a8ddd582abbbf0ef2b02d4b7c7c794d446d0b769bcd4e15d315be323b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BCGFU2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4446d843d9de4f5709a8b2ddea06397110900778e2e348d027acca1fe844f22f. 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/BCGFU2500011.