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 0x1d7bedcc85308949c80f06cb98938f53fc7b655984713773030193a62f6ad02e. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12392ed1-51b2-49df-af89-3b78cebe05b2.json and https://artists.proofprofile.net/proofs/artist/12392ed1-51b2-49df-af89-3b78cebe05b2.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 0x28fcc22f76eb3f479767eac770546a562f7fa5b0fa60e271f52d7f5789d5f278. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QZHNB2471828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf89c360139c1bdf418b4ece85f2dbe21a66fba18ea6d5ce2bc2e6b9caeca88e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZHNB2471829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84ea8e67d91fc15283dd05ddc179df73c369a5c8e80157978a9f6ae4a2878ef. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZNWS2408007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d33aa15892de06642abd3553970953cb92c16dc2a4688cb9c7e864aa55fbba1. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZNWS2408008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e428cd27dcbceffb5c9d5abad5e244954a54c39eb84b2acef5d172a6981b0a2. 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/QZWFE2468593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef5219bee1241af078ed81e256339f1bc8748fceab56a36c248d907558d1f19. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZWFE2468594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53393969fb4ecfae6e260d206525562462dfaae2e06b36d730361f25f780092. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZWFR2450022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931cd7d10a85904701b0ca906174320ae60d7f8d23dc28ac27b7808375806bae. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZWFT2420503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3970b1f530535c4d3ede620a0a486a417dac783b00883ac181b1b974f8506a4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZZ7M2485720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a7a16d2b7850131d1ae031735aa3a1c17ba6bddb91a278ae7350729edf0d33. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZZ7M2485721.
Àṣẹ At The Controls Presents Gomba Jahbari Showcase
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fcc22f76eb3f479767eac770546a562f7fa5b0fa60e271f52d7f5789d5f278. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZHNB2471828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf89c360139c1bdf418b4ece85f2dbe21a66fba18ea6d5ce2bc2e6b9caeca88e. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QZHNB2471829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e428cd27dcbceffb5c9d5abad5e244954a54c39eb84b2acef5d172a6981b0a2. 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/QZWFE2468593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef5219bee1241af078ed81e256339f1bc8748fceab56a36c248d907558d1f19. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZWFE2468594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84ea8e67d91fc15283dd05ddc179df73c369a5c8e80157978a9f6ae4a2878ef. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZNWS2408007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d33aa15892de06642abd3553970953cb92c16dc2a4688cb9c7e864aa55fbba1. 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/QZNWS2408008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53393969fb4ecfae6e260d206525562462dfaae2e06b36d730361f25f780092. 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/QZWFR2450022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931cd7d10a85904701b0ca906174320ae60d7f8d23dc28ac27b7808375806bae. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZWFT2420503.