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 0x37f4ed48b3861f437d9248766fe99ba59fde0bf3bb559aa25bda92ab19a53c0f. 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/7294943c-8f19-41e4-aeb9-19d1260ffa18.json and https://artists.proofprofile.net/proofs/artist/7294943c-8f19-41e4-aeb9-19d1260ffa18.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 0x6f9035e169f27924398908ad96b12f7b18d8875d1e06327470cf3e95c0cc97f5. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBPYM0730327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046571f06ae2de11781dc21e696eaf4d0835715c806eec050166d36c38a17df5. 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/GBPYM0730329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be898c8c510b25b47f7a12697090cb07775cb66351462fdbc83b724a67bde1a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBPYM0730333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27604f4afd86cd9074f27c3a6835a1fc493b499199b7b79daee0c2335bee762b. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBPYM0730334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6546a11ceef4a49c82a0e986e59d38ef16afd753abcf357970ba8a32322c34fc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GBPYM0730337.
Violence In Our Minds (Orignial Cassette Single Version - Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb85b1b8047ace3a4463be7b719a7e29efb05738621bdec743d8f60c59d6e2b8. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GBPYM0730338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4f30537ed3b9f43380cb0bc13c38868323fbbc7aa4446d3e552499d2293c7e. 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/GBPYM0730342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f04581daba10ff256806aab3bf95605874bbc86444e6ef2f80569dfbdebb39b. 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/GBPYM0730346.
King Of The Jungle - Carry On Oi! Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eecd711065c124ccc2b6329a01daa9d528aa916c08044097a5d104255a0345e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GBPYM0730347.
The Best Of The Last Resort: 18 Classic Oi! Anthems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe221546d1501e14616de9835a537531ae10784f50c32445307773ee61efe715a. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/GBPYM0730360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551273a4ef5627085db30df6cec0fc111d298f9c0916db4cb27c0bbc81af6889. 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/GBPYM0730361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38de2d6f19a1323a7295b2cd0bfe813a2f10dbb0a897e494d737b69149df56c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBPYM0730362.
You'll Never Take Us: Skinhead Anthems II
You'll Never Take Us: Skinhead Anthems Ii
This Is My England: Skinhead Anthems III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7248a3e92d3f2963c8c1d6bfa26614443f5ec79a4036a75c16b147e90217135. 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/DERM11300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3014f425b9d5cb2799ac3ba93c13f83249f71fb292d3b65cb895036b0cdfa95b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DERM11300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe223ad47fe1c77e2229eca7290cbacf5699b26573f5fcd0fa4be1702312baf0. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DERM11300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a80ce66ab249ff35d78c1a1189c78944d4238e99cbfbdbfe5baf6cebbaecac1. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DERM11300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cec96bbe01a2d688d3801e5225ecb48b4561dc0fe845cd48c929cebd2c4fb1c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DERM11300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3872cf5394828f2903fd6d9353b90318ff090e3b03ffaefc083739ee56baef. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DERM11300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaecbd0caf0a5456cd22a00ffec3a0a4b2fb20025ba3439eebc41b865c742e5b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DERM11300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3079eae9d961b3cf37f5e222d755c7ee01036bed9930e064a3d5b3baba638224. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DERM11300094.
Violence In Our Minds (Cassette Single Version) - Bonus Track
Oi! The Singles: Classic Oi! Singles 1977-85
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb85b1b8047ace3a4463be7b719a7e29efb05738621bdec743d8f60c59d6e2b8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBPYM0730338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8ae2475b738177864ecdcca7978a108dad8ab51ca32139b04d03ab24a4ae8. 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/GBPYM0730339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d3dfcfd5093cbfd2057445790f47f077534e21ccde5b8a7ecd3ca621f11497. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBPYM0730340.
King Of The Jungle (Carry on Oi! Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d0197e925e9421fb4b8365548d5f9c353df1289ccb2985244f4727745cdaea. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GBPYM0730009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a59e05d89d76598e3d7dc527f73da6903d814374aee156406f548e50c87404f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USYB32027810.
The Worldwide Tribute to the Real Oi, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea84aead2b71a30964ac3d47acfad47bf1b41414a6fb80481c7f21ab8111d4ec. 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/BEZ100200400.