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 0x1c3c61838793c506baa626a0324378822ea6df5c2eb5ef2cf23cbf5d47c480c5. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/636ae46f-96cb-4ef2-87c8-f0b099f1c64d.json and https://artists.proofprofile.net/proofs/artist/636ae46f-96cb-4ef2-87c8-f0b099f1c64d.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 0x82dc59bdb5453da897092aca8a73a1451d9d6d7c3aaddad3855b639059b4dc16. 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/QZDA72211907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a773199cb0030caa725b945b2da733bda3932999a1e33bcc95e56cc3267a3b7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:18:36Z), 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/QZES72266420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39615a30f6ff931ca884ed465f655365d0a4943abbb824214bae64e34de72382. 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/QZES82226970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607a492872b4b12cac67ccc2b54174306345fb954b122b2cdd946a42494f2901. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:09Z), 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/QZMEP2230541.
chorar / sorrir (de que vale a chance de estar vivo?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8043c866e474f0d2df6b5368e0d4e5143e6f509f7ccb238ac656abeb24eb9c07. 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/QZMEP2230542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7185dd1c4eea867cda06837653e6fdede9c0e06eb43663a8b23336ae5c156978. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZDA72328041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe808b27ff53cca500e56a8fabc084037aa7bc6ec33402ff03347f1915ac6611f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:00:54Z), 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/GBLFP2357925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe808b27ff53cca500e56a8fabc084037aa7bc6ec33402ff03347f1915ac6611f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBLFP2357925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28486eefc7775c9481fd23a9822b3f02a8533badf17455cd36a2d34488d0ab32. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZNWZ2513740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465425ab6d74a965d3e259ab9204f808831ee51c4b0b0724b46cd8c13b7979a9. 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/QZZ7Q2561902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28486eefc7775c9481fd23a9822b3f02a8533badf17455cd36a2d34488d0ab32. 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/QZNWZ2513740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82adb00c11b781cbadd34ac44999ea51d2ea3b84ddceeac958cd3006ccfff43. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFK2545224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe808b27ff53cca500e56a8fabc084037aa7bc6ec33402ff03347f1915ac6611f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBLFP2357925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab9e38d82084d671f5aedfd6a56dcdf8d554c3756b24a963ec265a4f48733aa. 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/QZZ7Q2561903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b7bb57b970dabd73e99f81d63cd3fb7d0c161f8a80bfcc182a615745bf03b8. 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/QZZ7Q2561904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7185dd1c4eea867cda06837653e6fdede9c0e06eb43663a8b23336ae5c156978. 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/QZDA72328041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34f0796c64d69800b08589e15a276c3dbac74c93b74e655fd4972bd43c3f6c8. 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/QZZ7Q2561905.