Cathedral bells is a common name for several plants and may refer to: Bryophyllum pinnatum, native to Madagascar Cobaea scandens, native to Mexico
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 0x699537c6362b6bcad1c5ca2160c4b7167d735d832a11c81ac03d7a0040215dc6. 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/d69ce95d-c720-47b3-a985-96ac3a0da1b2.json and https://artists.proofprofile.net/proofs/artist/d69ce95d-c720-47b3-a985-96ac3a0da1b2.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 0xf0758a7349e36a8780953d5c95adf1272e471c331a6b807b212294e139282b5c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM7281894448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3565c845d74f2cb93ab416ed028132b6960298ff137cea317dd22bc84202d26b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBWUL2034062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe74331e40f4633ca156634ffc12e29b4719f32b151ddfb04ed190504d0d418. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBWUL2034064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ab0b67ede2bafa1e515889589a4eb3aecb5019e8d4fb960f0a500753eb6bc2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBWUL2034066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ac615ef3e27c8a6973545711e7f8e02ad870801c3f8d6123108dd75292ce97. 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/QZFYW2160146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954eef114945db11b5602931275cef284075110934b0a27544b8c62815ef1c37. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZNWW2055027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf669cc6a266e248025ecbbfc6ed2a1ba9cd86bb77826b3eb323f5919b9c82f2b. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZNWY2098742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0d5731379d674563ccdcb267d80ccdc764007e6254c7b1809e394e3bc430be. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZFYW2160147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cc260fce319c4f2468072312f3eb8b04201f60190fb6350c539ba97505cb86. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/QZTRX2284603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdabf1621a7b0dfd3009cae592152cf605000cb1e8c8e2835b087b2ff7d64ba. 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/QMFME2294085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d92b7e85b8cfb0d84cd5d871cf4841f3639bfff5cbaa1d9e67bcad3c65ab38. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM4TW2363036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d92b7e85b8cfb0d84cd5d871cf4841f3639bfff5cbaa1d9e67bcad3c65ab38. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TW2363036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e639eb4af55760f0c0e8387cc617d0508ef1b26a90902f91b291d675b577d0. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QM4TW2363042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b345f37e90da34b4f3acb634052deee5975daef3d4561e06e7ecc01cedcaf00. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM4TW2363043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f8d451f705f86543cf4714085cde33c68bd775b14162689e225a822a1d2694. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM4TW2363044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e98f92796ad9d28406bac492d0671b722fb4a40440407f5565938b2134f95d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TW2363045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdabf1621a7b0dfd3009cae592152cf605000cb1e8c8e2835b087b2ff7d64ba. 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/QMFME2294085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd19f2f95ef8b96a33ad7511e3fa271c73b9db581988a2055f88b611c32670a. 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/QM4TW2269911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4420a192a35f13297d1835d97113c68ed05bf3ecda4f95b498c60ae836971c58. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TW2363051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa845a64cd53078f594d21b622010b2b781780d44f8d954c4c9acb67c4e44e613. 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/GX8KD2465522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced0ee20d369f8e2586f734ed96d2eb1ba74e11211ae48ccd3dc9f971e50ac0f. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GX8LD2471721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a16b4551305fdb6d62e915cc599a4a794c212641f3719d57431cf2bda7e4d48. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GX38U2430260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccbb0d12da16a84d81d21543d646fd9c5327f6c90b6719c0a4aa5d434cdb1dd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/GX3HH2404208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd723b6ccd558fa2965ddce254143ced2a72d068751b07f1328935d939c52b254. 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/GX3HH2440935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399f726cd1d4edf8bfcc8847dbb56fc8ef0a2d2651f788d0bc40dd7bfc13a18f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZQAY2358671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399f726cd1d4edf8bfcc8847dbb56fc8ef0a2d2651f788d0bc40dd7bfc13a18f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZQAY2358671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8176da57ad80569f9939daacf9fa1d7f63bc2d78eb6772b842a4798d913aa64e. 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/USANG2488676.