The Bangles are an American all-female pop rock band formed in Los Angeles in 1981. They are known for hit singles in the 1980s, making them one of the most successful pop-rock groups of the decade. T
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 0x14457a4d0213dfa949ac1ac1f752b52f634765547fa84f8bce1191933bdca2b2. 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/e2e2e59e-a78f-4bd4-8df2-0db35a0beef8.json and https://artists.proofprofile.net/proofs/artist/e2e2e59e-a78f-4bd4-8df2-0db35a0beef8.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 0x43e3500ff38f631a941d0425e491a6b4dcef9d26609c73ee426b2fff986f55f3. 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/USSM18800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d401383e2fa328976377dc6bf959f3430d8fbeb5cedffab068f0f1a5c2d12f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM18500268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e80471573d6bf7c2ea54fa545c10a7906b4fb7654d2b7ab744c5300574cafcb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM18500266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d401383e2fa328976377dc6bf959f3430d8fbeb5cedffab068f0f1a5c2d12f. 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/USSM18500268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baa615780434abeb2cfda5ffb561cc27e5bcc825645fc90ff55374751c85acc. 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/USSM18800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e3500ff38f631a941d0425e491a6b4dcef9d26609c73ee426b2fff986f55f3. 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/USSM18800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baa615780434abeb2cfda5ffb561cc27e5bcc825645fc90ff55374751c85acc. 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/USSM18800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baa615780434abeb2cfda5ffb561cc27e5bcc825645fc90ff55374751c85acc. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/USSM18800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f2b05561d3b1850bafcf8664623b604090b2375c7fb34a3993a57cd3674b7e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USSM19802609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d22b875daa7f99a6fc57f0073fd8ddbf2f5941f05f6ca9189aedfa17ef981bb. 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/USSM18500592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef02e4b7a6a4b1c901b002a5ee1cc260911c50494e2797e940b10885318e84e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM18700216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23724671c0804358f4f8f2f4b39d97dcd4bcee84d15f7b071572ce5084aff951. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM18800426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e80471573d6bf7c2ea54fa545c10a7906b4fb7654d2b7ab744c5300574cafcb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USSM18500266.