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 0xb98cbc947b41d2e17dac56d1d0ef6f148206e6e6b9de6706f00d0fae0f63cd29. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e386088-ff92-4635-8c12-89328f4fee38.json and https://artists.proofprofile.net/proofs/artist/0e386088-ff92-4635-8c12-89328f4fee38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Highlights World Brass Band Championships 2013
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 0x3dc25fac0b1b5da8a173589533f44538920db16034d13d8995f2a0188199e968. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLC351318901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18950fb7220f0df90d85c42a96fb88fb45caf2fd0cae5bb005090c313abe13e8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLC351318908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d8b0e7bd1683b9f093dfd74b9687a1548646da78eca1d256749aa51f2c8353. 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/NLC351318902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fbe746238f0916934823bb37e395bb815e651732628b3338656d1c2001a2ea. 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/NLC351318909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e25aea8e3927af57ba62f102f4aa293afe67ce353f9132af3fd7a7adf7d216. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/NLC351318903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4315e96bf56199b7566084a61dd1c68da4970d04ad05a7b803a69c56ae74d2e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLC351318904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4276ef5666062bf677839c2515a9570c85dcb599f2c9d2efaf18475dce6408f2. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NLC351318905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390b404380ab9689b103c16aa4db01d0d6fd5f4d3886a616f39c8f7f9c37170d. 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/NLC351318914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5ee5c51c4a449be475a9c85baeb0c462ba92ed093743b91f670edfcf4990b6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NOCJB2400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d9ef0d1b2eef40cb1fe64b98490b27732f1c1f93a552ca490e2a9c12f70f32. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NOCJB2400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80169be6ec76f482e31d8fed80cbb5a7da917ff010ab3e192f17abc9802d002c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOCJB2400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c8209c6a9e4d2ac3d90352f9af94b66069c8e8b5933da7cf074f3457ff0ce4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOCJB2400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3d5d85fe816c4bd466f2fb5cd94fcfac3d8fcea417d3c070c24408cc7f2f6f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NOCJB2400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f1627f7f2d5da7c2ec732d168f44062d202b0db76ecadc9295b439883d2927. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NOCJB2400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a95066cbdae6c818cc1e4ec320b7fd78d374c34d48fbb995bb3f84f9ba88c7c. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NOCJB2300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d25c34a1d2761300e11dd0b2c820525fe39c061e269271f4978d8d3fc70267. 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/NOCJB2300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05510ff3c5c6e1f3167a9e1248cf9001dd2d14d472cd5db7397c888d14f2e4e2. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/NOCJB2300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262754815462dbc0c50899a09b73fe8bb57f7ae4836a456fbaa634e4228c381f. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/NOCJB2300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96bf625c15480b7d0b08d6b9c16e1c6ad0cf692da489cb6dea6256e06dd4652. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NOCJB2300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d12f2a03843b1c127c9ca15ea0b56a24e7e3354deb4374aa2000c832651410. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NOCJB2300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c9a6ceb083b8ee06d1d86cda10533b99fe3b12a94e33376c8d89c9e952334e. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NOCJB1700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e00c15dc19c9093986d1b59c2575329283ccf02b1ef47ed2048739056f8a68c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NOCJB1700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf898c67940cdc09acf9c3b599ac5b1975e67f1ed0b9e2502f3202df9d86c3c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NOCJB1700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c52b455a91d62caeb38b12714e46671925b048cfcb3541e4fe5881434d39908. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOCJB1700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6066409a3e708758fce120c0ab60ea0ffbeeea5865cfd94a6053b9ef1fbead24. 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/NOCJB1700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08da7d703907418f63c8a3ab6e387f7631a6d9e8c550505057ba10d294045d16. 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/NOCJB1700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3641f4f7de18ddaf366f9db68e96a47e7600835d5129333635663030bc8590c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NOCJB1700120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292b7e8c533480f507a4ee7dbf950acc5ae01d2cfa1898b035d13818dbeb69a6. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/NOCJB1500102.
Audivi Media Nocte - Eikanger-Bjørsvik M.Lag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d57e4a762d272694f262e8e410052591b390dc0b37d5f08f9bc52382347e49. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NOCJB1500111.
Audivi Media Nocte - Stavanger Brass Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c9f985e4d320fb84fbf853663e018b73a56bc7ce6cf0d5b1c73eb1115d054c. 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/NOCJB1500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c3b85bde479ff0b664ef0b1c8d6da1531fa5256e845fae4aa5c0e2ba62b98f. 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/NOCJB1800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec16cb708b95102262f653bd714985e0c2563f45fdcc4fc554f2fa2492a29f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOCJB1800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd1cb5ba02f2da050034d2f2efe46b827e7ea7cc364c1ea9f617cff5b4a5715. 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/NOCJB1800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9b84aadb0e9a3f35ef32bf2b4b58a50b3b8ac79cd8dc09e9d7386fa78b39ac. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NOCJB1800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3660a936461d611ccb5f0a18560a5933b0a0cb466ce7dcfd6d6fed7822f9d4c. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/NOCJB1204120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf594196c369ed6dd22dae853aa56f519f8826039716a709d1a30611459865085. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NOCJB1204130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0eb34203bad371d20129ea729058281791ef2d9cc17791b30d411fbb9fe40c. 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/NOCJB1204140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3086cfe579778a3182af098d58ff8ec58f7e31b7bbbfc5e205fa8ed081a3d3. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/NOCJB1204160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeae7a9dce386a0800feb1e112a5b544f35c04b79bcdbd47cdbe63f8e22d7de1. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NOCJB1204180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45955fefff293b9637c4f24f7f37b6671cfc58124e5690d651db67c6183d17da. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NOCJB1900205.
Concerto no 10 for Brass Band, Percussion and Onde Martenot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44196a8ace462b5f009790eb3a0b90f2cd02a437b23368c9f123c3a11acc296f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NOCJB1900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59de6164d0d0e32ab105bad681a4693ac4073904c7676af5b3975ea77319265c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NOCJB1900216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e24dda979b1f8020a611fde8102b62306719f0e89c325f1a3e16a74414bab89. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NOCJB1900218.
4th World Brass Band Championships - Highlights Wmc 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8204b592e750758c24dd7536d698e2e81c803330df1bd0de353fa61ce154a4. 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/NLC351720901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483b2f9f56bfef6e0385e60674f6477b1e3afbab9528e3a0ddb18023b0031769. 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/NLC351720904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e5fc05f428780472e4bdd3b104b4fec35bb894ab6dc4279e81a7c69ad0edb5. 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/NLC351720908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bf248c826e3b5ebdae6fba9fe8f5fc359b24e082ff2695471eaa675032c961. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLC351720910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f2da140961479b71397bba4821d7e7bf1481aa853cb6cb3d630d7f5d67e9f0. 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/NLC351720912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbf6990dc20c1d9ab6912cccecd97dfc3c77e47c2ea8d988598051516cb3b7f. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NOCJB1600111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609b86b2b0a57f98e93fc22134ecf7a8e5fcd453d0bdba41992c6016b4750305. 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/NOCJB1600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39e4224e7c4f0998d3581d6e6b5e296b43bf581cd9fb8a3d0e608a7807bc152. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NOCJB1600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20584e20666b044f864bfaef0f609508146ae11fb6357fa4979c44b824fa20cd. 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/NOCJB2000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a98927ea59b4cc03bc9c411c5e996b2471ec13c6e759d28d08735d7308d4be. 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/NOCJB2000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaab9519b668a5f9ff7cd5dc36f644acf3c795c0febe5c173565d60fe57a4d7c. 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/NOCJB2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c4404c12ae432c100dad4578ac4a6f646f860f68b96a169c404f0c987228e6. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/NOCJB2000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a523e9af6acda9e5b5dda9738fe6eef94083e91a730ba254dc1fd9c9b660f2. 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/NOCJB1400211.