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 0x12af27bfb8c8f3a9a7a5c6df15b8b29f32e79d49ab53309524f5487dd8a8e1aa. 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/38dcc839-319a-470a-af8d-2ee391e11681.json and https://artists.proofprofile.net/proofs/artist/38dcc839-319a-470a-af8d-2ee391e11681.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 0xc0d5cc416ef96260433d12546e7d636ef4195bd1b837d6b281fb8db972285862. 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/USHM22267433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baa8648f3bbbbcfe2ba373badc7b552546cf3587ece43dc761e7d284a84283a. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USHM92240166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea3930d4a757831ca8c391ffb96260de5ed8b046dca6675ea9b60f79247155f. 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/USDY42373590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd42f6fff6a3f2a15f55d419e745a90b7b8272e5978a1cab7589231c1abafb6. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/USHM82310351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa10d0255b6057d0b2a26fcffcf48a27570a578cd44500c4c4199a9a8e5a129. 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/TCAIB2457465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f8c6b56783c7d12df0a55eba341fea74b3b79946dc61998de76274ae5b5161. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:45:24Z), 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/TCAIB2456808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6901b5972286cccdc056f4e0db416db8b89782ecba7eaa294287be94df7b42ca. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCAIB2457117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c8d316a7df56b9829bc89ac3929ab0a395cc3bde6bb18e29daebdae37447fd. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:37:17Z), 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/TCAIB2456991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55837d999f1c6de3977873a108c39b57f2930ef2a68caf7806241701197997ff. 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/TCAIH2473100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf20a78629a448b7a1e36bc9cadb98b08e67c7a20862b8687bf5742b1a687be. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:24:10Z), 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/TCAIN2449710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8587ba5f6694e994682ee35e3b30691c33903c4b7aef94364656ce96931f5b84. 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/USL4R2256885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f01301de791625bf3ff1dcb00a432f086e34d395b2a811f23d347673395913. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USL4Q2359530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecba1bc6dbcc7925d196ce1303c7ed5be8fb30eb5683943b711d638172bcb88c. 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/TCAIQ2456515.
Balada (Tche Tche Rere) [Guarani] [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b733d99923d74152deb3739928c736c69bbfbb4b940564cb8611db6239383c. 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/TCAIU2484800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14836d409f1f7517a4338c28b9bff06fb11c9d1ada3b30ab4e9058000c0805e5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:12Z), 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/TCAJF2501870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053f972268fe878757d8185bf8baca0f826f7bfa6d51f4e5d8420d8a92ead488. 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/TCAJH2529869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5162f2c2ab467b61f2cc333edbbfe9668bae5ff7352602185d8428edb7e623a1. 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/GX53U2530143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6901b5972286cccdc056f4e0db416db8b89782ecba7eaa294287be94df7b42ca. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:08:13Z), 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/TCAIB2457117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa10d0255b6057d0b2a26fcffcf48a27570a578cd44500c4c4199a9a8e5a129. 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/TCAIB2457465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff497c82b6093f1f141df096d4d7d8158abb028154bf0c8c5020976c5081e09f. 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/TCAIB2456557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c37f60a064e727732900b13e294a998034aaf10221807a33fc5a17774b2259. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAJB2425461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea3930d4a757831ca8c391ffb96260de5ed8b046dca6675ea9b60f79247155f. 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/USDY42373590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6996aaa9f27c602053b1093a37bfe23699553620f148e65ddb10708c977ba6c8. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:38:13Z), 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/GXHND2549090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8758383371a06825047980ee874727594ec5bb6bbe070eb9c8c16eb0be3c9496. 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/GX53U2616862.