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 0xc94e073e78469a1b1be8abef3a993b0f003454eb956450e5308aab06ad257ecb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/010919be-f4d0-4e1e-a6c4-142b9f9e9e12.json and https://artists.proofprofile.net/proofs/artist/010919be-f4d0-4e1e-a6c4-142b9f9e9e12.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 0x34d6537105ef8556c54c4bb338a0b3acaec061456a3426f4db52f331965b9146. 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/BCIH82211908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d22041f54dfca721368c0641bb18da2b52db26d9b92cc030039d97663e1d4fc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ESA112437046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f040080ff1b343e8ce2e5d2e1230108b1db188dddabdb8fbc70cf07710b512. 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/QZNJV2462336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15921fdba85de8da6f1bc105f1bae06551bbef9a704a4232edab844656de31d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMZ92419500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f4dc01da451627a87919286bf8e5356fdcf5edf7b43a3a039cce3e06ff8010. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USCGJ2447400.
Montagem Mais Assombrada Que Casa Abandonada 1.0
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a8a4613953e8352100c9a0ca926bfb65a48bc014ffbb638e95aaf68c6b5b19. 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/GXBAV2403680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc49b0f1c0d297a1f73ee3ecd7252666b6494fc68060770716c1afc455fb2f3. 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/QZWDD2359649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf277f658e316666694e655be6cbceeb253557e283f2e57c06a70dbc2d11b63b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDD2359653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab613b15498420bab5289e37d4c893ee0f40fd92c4d62d90747817cb3afae3c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWDD2359654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc47713cb1a88cface37898f76e93bf86e2861a5f883a8104782b4fac49a197. 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/BCVK92302238.
Ritmadinha de Outra Galáxia - Vem pro Casarão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e260583d2daffffbf3cfd0454798145280050fd65077f9aee0e362a469e1bb8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXIV82339012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec778bc6d81f6f8d83afa81dc4cb7d04621c3a66f26bfd1eedda9a364c6fec4b. 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/BCIH82208367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c24829b19f61684999e1c2832f0b67635dad91e9a63c49d630db32c52463b1. 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/BXIV82396176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c21a40df7a418bf9ef89a05e6174727d41c1f8e6be4938827ccdebfff8b6739. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJW2346472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea17b56ceee5dac6ce025ece37ffdf416105d4e295b63a0c185b73ed6cf2bd18. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCIH82302342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d5b492361a28919d2d44570399d590f17e8a29c4cbac8d09fd7736560c25c3. 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/QZMZ92319149.
Montagem Assombra Matrix 3 - Sento Rebolando - Bota Que Bota