Bells Larsen is a Canadian singer-songwriter, originally from Toronto, Ontario, and currently based in Montreal, Quebec.Gavyn Green, "Q&A: Bells Larsen Zooms In". Paste, April 24, 2025. Background Th
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 0xce1a4879c6343f9087598d0c02ebdcefad09b7c39c8f03a9fc660ac2d05ca33a. 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/b6621c29-ba02-4621-b498-105f411d27dc.json and https://artists.proofprofile.net/proofs/artist/b6621c29-ba02-4621-b498-105f411d27dc.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 0x3a098377190150637a1a1e38c53fbb6e1f3183bb2712edbe995b33dda45ce54b. 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/CAO372218002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fd9d8cd0b3f132d09ff98e15b56a30e168f9f109aae52309b4e5aa1337ab07. 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/CAO372218004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f485af8e1455113e2d5bc7e3adec0cab92c4ec5dea82acddaac08549358d2f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAO372218005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474e6475313be7170f2e5c0a5349d59c1637bc19fb248a4f558eb7f86e7a52ba. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/CAO372218006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fb0380748620ffb2b6a2748a6ba066380071b3c3466583df9d832540e202fe. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CAO372218007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc7eedc47c1fb7a4a132487e50dcc1e35446739c0894234a8e7c441109bf023. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CAO372218008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d57d788e769f07aee32673f6298324fca3596f86d44021adb123e79d59e0bc. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/CAO372218011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2df9c628e265e3c3b11c0947736d7c49debc1a58e2a6f2e2f5cca738055dee. 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/CAO372322301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cb364738cde8da34e66b6d1b41d14f3af1920b91e1fd238b820f4f4b89300d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CAO372322305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7502334f9a0a0c7f7e0a73a683faf070075de7e2d50f1e34c18cacfb275c6832. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/CAO372322302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68750fdd276448a1cc8ad068c3df0dc1905f69f07749c738c271048b5d95a79. 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/USZXT2455700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9661ba805dfd75700bda0df68da1a3c1f3a892d811d5474964c7babd67a3c9df. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USZXT2455712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57da8edff815389e7ef24e6b9d39dba01aef7c62c0ba0ac33d935fffae8cff7. 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/USZXT2455699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68750fdd276448a1cc8ad068c3df0dc1905f69f07749c738c271048b5d95a79. 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/USZXT2455700.