Ribbon Skirt is a Canadian indie rock duo from Montreal, Quebec, consisting of vocalist and guitarist Tashiina Buswa (Anishinaabe) and multi-instrumentalist Billy Riley.Grace Robins-Somerville, "Bite
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 0xdb56c151dbfac338eef87c7870fee41310cbc22fa403f51494a9d569da5a3165. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3d63cb4-f680-4386-9aa4-07060ba36944.json and https://artists.proofprofile.net/proofs/artist/a3d63cb4-f680-4386-9aa4-07060ba36944.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 0xd7565a8b18f0d57603587d62103b24259f82dde555f933a5e24c5cbbea363bbf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZPLR2406581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ad913c04e961f434cb454c0cb8ceb607bba8c40518ab4f0d200eee7972f20c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CAMA12520905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9c27fe2e4c536ac9e51619f051864ee3b9227f05cfe4864b2f05f7a2de686b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CAMA12520909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1650ec730dd986cf5a8ce0eaa688643ebe64c1d15c967d5e8b7a330565155e7c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/CAMA12520902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa043bc94258dcadf9bf1ad6983bd8549c91a44a20cb5719382e4678b199c6849. 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/CAMA12520903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65353b371641593d598a50beb65770a17d435cb401c3f28970ebb44120f0bb12. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/CAMA12520904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb44c7d4be365257fe76bbcdd4a099ded53989308e6f3beded13414468814d02. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/CAMA12520907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f919d679138f9196e17303618ce2584ad6bf57278a52c97ad8c17f96cce4fb. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/CAMA12520908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9c27fe2e4c536ac9e51619f051864ee3b9227f05cfe4864b2f05f7a2de686b. 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/CAMA12520909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fd65de822e72224d71af21b5711a85c09fd42a4a29065969124f64446d9d03. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:11:20Z), 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/CAMA12521601.