Helen Jane Long (born 10 April 1974) is a British composer, musician and pianist, best known for advertising music, film scores, and contemporary-classical piano albums, Embers (2010) (BLE) and Porcel
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 0xf472a72de87de8cf9507f22fad24b704e9668d49e55429bc461da6901759ae36. 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/63798f00-bed7-488d-a0c0-751fc51db821.json and https://artists.proofprofile.net/proofs/artist/63798f00-bed7-488d-a0c0-751fc51db821.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 0x8987dc66e797dc3be528246bf7c14faae2b9c2de9c3a7c59ab4902fe78ae7518. 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/GB8PA1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa203900272832153fc3a8ef1de940458dc0d52a2d4496f56831d243e64d77b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GB8PA1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093f0671f817e15e6bf3945342581c855d70726510a5fb1c78bc6b6e6501aeba. 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/GB8PA1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a1d85394d9fb6a0cc7af85fbede3a03f77dba9fefebf26f3517a0fc319dc1d. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GB8PA1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf692ae3571cf7435d15f63930095b5dd9caa76bea8dc1b46ad8d0309da11bd5b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:06:51Z), 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/GB8PA1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e880ff221b89f2cc4c8c76516b6787e515b5311c70914293a830e883731a5db. 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/GB8PA1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fa6adc3ea1eba33bede69756b91193fe73eb9a3c8374f6179165e5cc7b13fd. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:49:02Z), 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/GB8PA1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c19785b7d4ecb526cfe56e2758520d51775507c0f1dd90e95352b89d03ef54. 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/GB8PA1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eb243d4d70c79d6f54c416361a7a4c2ff9aed9574d8bf8be5a448dac13d1ab. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GB8PA1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e96b271d19d9f6bba0855deb0178409271e2ec11ef953c94f2d51b24935ef2. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:11:41Z), 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/GB8PA1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dbe7ba956708df954b82cbc00e834c8174a9866af8e36a812496b3954c40cc. 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/GB8PA1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7417a51feb90b151cecae52a9817e86341664e19266f6565c4d5efec46d25acd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GB8PA2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079c2d383c8343c81647964bd50b3e97515cc886d7b7c18eed5c2a14a0824982. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GB8PA2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6256b6267008e94300abe551293aea69690b25152e3ad45e0e6f8e6746f8a0f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GB8PA2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bff3ed61487cb48050b2c4ec6f812f6efd75d5a3b5a1097aa1d772bd5bae8e5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAGH2273854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27e4023a38148bc643b1f9ca93a48555d4540fe39514b72937733b9c06ebd49. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GB8PA2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78febec1b76cb6215821078015f95ac3472940f3750f6e66eec5611738458594. 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/GB8PA2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa203900272832153fc3a8ef1de940458dc0d52a2d4496f56831d243e64d77b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GB8PA1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32282bf0c2f4054bbaa6279bc416bb5ab5a8a5cafb914a67426b5bfc70eed801. 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/GB8PA1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198a2f286e45e20ff4ad3fc5990f8f2164ba9896887095dad89dad6216dfd925. 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/GB8PA2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cbdf2bddb308b417c3ad504a4a86112133898c8b10526320e8585fe80ae278. 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/GB8PA2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51abca1ce68bbcb104b85e31cc9977d2c6d7ca147695f1a3d82181c57163e192. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GB8PA2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f798869483273b8fb8a4dd377555085ba8366b96332aedc37920efae3fd799e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:41:06Z), 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/TCAIS2447967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe415300877cf8b520b2a50b4a60d31bcce032049bf04d7db88ab53cebc4b4eff. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAIX2447820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2becd3e1822d74cc1c3ca2fc23602b2fe54d8a3a5fe046a1b3610cdec59c1a. 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/GBELP0790009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5cb7a4cf3cc5c5e98215c641ccd38af4bb07d1036b239987ef1b8fefb55c0f. 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/GBELP0790011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14617616bbbcfaf9144ed031f1804efc8b50644eb4f7a384e36fd662a1d14e8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBELP0790014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bf87eb960de890978e30e6f9aef6840cfac960c358397b1eddadf55e745e85. 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/GBELP0790006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde832ac01c969c5068dfef2e38c403fcbc9ad6f73067605f4d571c6a1169ba0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SEWDL6142768.
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 0xcd5ea10253303e3e6dd4e619af4e7065a46c87ad729e6ee2b7fc47279c52bd3e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBELP0790019.