{"copyright_id":"0xd2aee3bc8d8ac956abb0d5912b33c463a7aee2a355dda40d649ea676a480ecba","name":"Fabio Quarai e Grupo Abagualado","registered_at":"2026-06-12T09:29:36Z","symbol":"NIM0256493","token_address":"0x6d4b4d8250db6d50e9d5a6153a5b6bac1fcb379f","type":"artist","uuid":"c6bc854f-2b05-4d2e-8dbe-4ddd32e7f234"}
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 0xd2aee3bc8d8ac956abb0d5912b33c463a7aee2a355dda40d649ea676a480ecba. 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/c6bc854f-2b05-4d2e-8dbe-4ddd32e7f234.json and https://artists.proofprofile.net/proofs/artist/c6bc854f-2b05-4d2e-8dbe-4ddd32e7f234.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cordeona no Corona (Unidos do Pala em Casa)
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 0xfed239d3d7a7c8b16ec4ea63e1d01834487e45c15fd64b255b95f038b8b0453b. 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/USDY42392078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9d2c3a1ce2baaa49338231cfb9da9a71c45451afd89c82a68f659c9b8abf79. 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/BXFJ92200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6996704f5acde92e90b63bcff15705e5202a4eafe6c2eca18107f42e2dfab3f. 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/BXFJ92200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0408bd6927d4fc2740a91cd6eb3d046a1b0bfb2cdf2e3689d603413ad96a9286. 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/BXFJ92200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa32105c454b8fef8d4e3a9e9a5bdc346f6fea5981ce7f3f851ae5e9a7b4655. 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/BXFJ92200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0415881fb03b518f7d5d96f55f5a2316134921a329712cde897d8d75bdb1004d. 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/BXFJ92200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda48cb0dc2c6977bc4eb11c24c651dc1a8b00f4805ad4ec66a71852ea8f95d43. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXFJ92200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452b119867b888e624f8964034cd706fce904a2a35b94881b45ef61cf028ca70. 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/BXFJ92200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5931c7976e378c969d7b7e5dfb91136c571022490bfbe41e8d907c04f8cd8b. 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/BXFJ92200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c4430c0c5b617fca998a2beed25dcd632ff05336ab3e06d438c39ce192bb90. 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/BXFJ92200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074925d5bbb358cf0e52b6b41e8169788ec265a88150bf2622d290051800d38b. 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/BXFJ92200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057ddfcfcfa6791171b34540ac838394a432ab2154469ac09527617929341feb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXFJ92200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526c4097c9bcceca34dd6c6639faac87d41c8d26b258b8cf617605841ac25444. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXFJ92200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58b92844a091954fba006b5f935b4a7433ec1791e54f2f550b963f179f643c8. 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/BXFJ92200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37507d40043992a36f47964e620599af6c3d4e80552699a3e667ec90bf4b1b9d. 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/BXFJ92200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9334059e955284d9462e11c4bc36ff3ea7230c74d9bf23f6215a1b9730896a15. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXFJ92200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f29cbf018fd4bc0b74f2a1e7bbe64b8c356966b22946bdca6a85d2e5dab59c2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXFJ92200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553f0472fbef94630efe2e6e32e2210557df0603c4f4ff35a725a8c16bb42cb4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXFJ92200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8993b9b46651e348c18fc97bd5e130769eb3ad85848f6cc8019584823f7a900c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXFJ92200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bb5f3d59cd65dda85d67689915fda1fa56f4ccbe3b5754d93f4614eb1b1dc5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BXFJ92200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb30e153ee7a1a97b5818a22a90a29880d9b8f8432e91b6ff83b64708cd97b6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BXFJ92200008.
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 0xb80bcd13b538a8d860bf433215e1759d98e7cd1f81b3837bcc87ebd8f3904008. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BXFJ92200010.