thumb|A modern version of Bread of Heaven, sung by Owen-Jones John Owen-Jones (born 5 May 1971) is a Welsh musical theatre actor and singer, best known for his portrayals of Jean Valjean in Alain Bou
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 0x032ef50aed9ebfc013e3675e879f407c71658ec3b64dab7e5bdeb72fb4ee9980. 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/3161c971-fab7-4875-ad18-667a723ae7c2.json and https://artists.proofprofile.net/proofs/artist/3161c971-fab7-4875-ad18-667a723ae7c2.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 0xfdc5c4544ead0762e17bf6d062325f009dd93e26bca45b6bbaebff4d96133a8f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBCFU0900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25eda4272bdca2d68649d8344316286d897f957d366947820e987d23acede4a. 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/GBCFU0900291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc87f4a42af2b1d9df65f34349b8d96503056d5595c484397cada2ba808fa47. 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/GBCFU1200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf574936cede9422ac4d5045320a752543d1b7974c268d8842be2758dd204b5b8. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GBCFU1200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b71f9ab4f76326056318baf5f030bb54a4435f6135fdfd04a96443d3037997. 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/GBCFU1200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec725cd3e9032d588d938577a9866fea12d806801394b06b2a71a99579bbf3e. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBCFU1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a8ac5c7b36b749ac12ac92259889dc66513d88cd8f7755598e47a11dea5ae4. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBCFU1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46c6b4007fe86518609d62046bbded26f5daeeb0218239536e72f083eb6654c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKPEE1800001.
Holly Jolly Christmas / On Christmas Eve
Les Misérables Live! (2010 London Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957bee76f0e8333850d26bab36452c979be22ecdf7f49812d54c98547463c8e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBKB1021202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a094e2c1a78c823ca5e75794d4c1ea5c15d9eaf83d254942d50dccb57e98238. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBKB1021206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59ae80add9993a712038fc1d32134c5563aaec88693245b183568de67f127cc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBKB1021208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895e8779c7547bb2b37a0afc06f68ca6cdcc3f9dc946476ad4236d49476e16f8. 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/GBBKB1021209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c444cab26411bce405f2db0a7553f35d172dca2f6f7e2d15461807e772f55eb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBKB1021210.
The Bargain / The Waltz of Treachery - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2911f5a2d6337c73ee4c6cab837b645c36c5370f74c19e255b890d0c0bf798. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBKB1021213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2ac01fa74f362544580e64be057cd82d286fd83b7e2ae28a20f24b33cfdbc7. 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/GBBKB1021219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca016fd6c8cccbc55624cc682385d4dc83c35bca835edcb766a6dc3776e8b369. 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/GBBKB1021229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2c0de9fa74c93d3b9aad1bd13ed4f458692a63079efc883500b55a890cf1e9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBKB1021236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1f3686872cef50255d12b310b20bcc14bcadde3c426759584c6dd47c5bbbfd. 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/GBBKB1021237.
Tell Me What Makes a Man (feat. John Owen Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9649ec4f5c92a725f0d24e45c7702da3ce152f494fccd25c2afab54e54bc83a9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UK2AW0000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be9e83d3276b5d2c3f028651a5cc7f61e13bc626b601a1a984743ee35a07f24. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/UKZVX2200124.
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