African Head Charge is a psychedelic dub ensemble active since 1981, when they released their debut album, recorded at Berry Street Studio in London, which was, at the time, run by Dennis Bovell. The
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 0x399ff727af82bc31abb0031c1e42a55d1b4881638aa8effa528cc266c6ebcff6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3031bfad-54cc-4961-a522-b2242dba0092.json and https://artists.proofprofile.net/proofs/artist/3031bfad-54cc-4961-a522-b2242dba0092.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 0xdef3c6ebe7dfafac7877892b2778dbf2101517b432bfa5982f4cd32fd85be072. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:48:04Z), 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/GB5P58100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac04daf2748ffe15b87a2dfc54f069ea0788177d77fd78e776cbde42a5485660. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:40Z), 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/GB5P58100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46d5dade2d6f6bfc3f09ee02e9240fe08ba44cc7693e2555c3a90d1be8fe7f1. 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/GBCEL1001019.
Free Chant (Churchical Chant Of The Iyabinghi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a45d0e22154886efb02344a18bbc64eee067b3c2d3e65277da3249f91d53f87. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:51:44Z), 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/GBNLN1100084.
Orderliness, Godliness, Discipline And Dignity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ee766757482a35cf52e5e164cde24bf8b91a46cb02114ed2951064a0694357. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBNLN1100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6051cdd22fae3ea8641dfa7db84487299b082f20e6071741c05ae0208e78256. 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/GBNLN1100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3a644b8587e59cafd4dcbe4e19eb52dddddb143e061e615657def1cc4de412. 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/GBNLN1100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9454563f64131d18c6a8e1d9c4b1f5362c104995e5ccc83942e1aae34ad5ef4f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GBNLN1100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f32a531292316c4a50aa61383b7e8b8e4ec7b5477e940e3bc038132ee47e223. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBNLN1100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c0e51fb7ff4247c5d3cd5f456cf91d186d7698db06e864f6681b5a5ce3b73a. 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/GBNLN1100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7567c9bdefb5df8709e800f8405d38305f416721b0be9c3cdf89416f62254e99. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBNLN1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba229d22b8052ebd0714ddf09794332144e3d39669721ca89725553b51f89d1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBNLN1100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe930930acfc833eb3cce54f35febb2622e502cb7cebcd8b8d4735e327dec5397. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:36:25Z), 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/GB5P51800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56533386d997c8621aece4e31632d4981358b355197ff382dc1151991547c2ac. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GB5P51800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3c61be872911ecac213a2ac90906923f5671201dd3ce0ffeb3c4f27fdec6e1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB5P51800162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9900054376b30c7667bd4241fc958f1e2c13019c1b027a4bca4edf02deab8e. 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/GB5P59700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a9c3d451722ca1cc22e656e4c2c7dfcaee7767f13c74cf17c3d63dc165ad50. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/GB5P59700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a70db6357427efa35d216150979ce97a4f006ed80e4e506019b351a5955f60e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GB5P59700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f597863eab000ceee74403a3b44b98ba9db88b6d1bb3cb893dfd99207a154b5. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/GB5P59700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0c847c1c221cc8e49d313dd7d2d970fa0927a0b3c250d5c0bc7fb03142126d. 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/GB5P59700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4528045fc72877502c2adc3005bc470263507ee80e6fe3a57343e499faf629. 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/GB5P59700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62eea3af12755ff280edbc77a34b67b38394af8e1d2dae3c3d22edd95794a8e2. 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/GB5P59700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72725d7f96c33bda1f57e580ab6fcc4b90d98e1c632788056a8db7f2c27ce3e2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GB5P59700068.
Sherwood At The Controls: Volume 1 1979 - 1984
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b83a50e3803fa6b4b8ca3ec90653d068d0bc1b7e6478d9457a4f205b2e129d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBCEL1001023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf5db60ac60ec40dc268c3af56c8893a9f2d4cd65d836166fd1dd753bd268de. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GB5952300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6342cb020ecf25e5bd46525afc7924fa9e0341fee5f7421ce38975c3bd5b45de. 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/GB5P52200159.
Trevor Jackson Presents: Science Fiction Dancehall Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354db7ddd3313ee6be05d1b73901f800a89355cf4fee25b53cf8cb1e34e16eda. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBNLN1100014.
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 0x59aa1ff156970a09b35e026a0d0f30cbcd9c6f4e303c578b6efa3560958c74bd. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GB5P58100013.