thumb|right|James Harcourt in Kate Plus Ten (1938) James Harcourt (born Joseph Hudson; 20 April 187318 February 1951) was an English character actor. Harcourt was born in Headingley, Leeds, West Rid
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 0xa096bddd2fc4f29292813ae436e1ad850a84a7dd28290edb046ee3d9a781ff57. 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/289be26c-13cc-49ac-ba36-218cce6ed2ed.json and https://artists.proofprofile.net/proofs/artist/289be26c-13cc-49ac-ba36-218cce6ed2ed.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 0x05157fed78206c9692202da95db57d8985702b574fad4ed2342496cd38f2bedf. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/ES35G1200784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b074d4d9160107b5820b8c517513c5e138633f3b259be27b9a500c1e8ab1569. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/ES35G1200818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5ad62a18623163c9e622e33ece64c550de3cb3529f84dcaef02cf3d3e2dd34. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/CHC652200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070c64196a5d8c5d3a4728771971ff0d539b30847952db462b9842b6aaa8ff5. 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/UKFHN2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68df9b3c0aa1e6dc337f82ed8083c148c774489430371061478275b1e08d918f. 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/ES35G1200885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1b98cfd462815ed1efe3badae15781265d893acf36d095870faa44644f41bd. 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/UKACT2320581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd767b2ef6f3cec47f03c9aa73f4311a6c2d69d275298591a5351647c7dca568. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBHFW2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863a442f99a4bd769e57b5d76b8d588c125b4866ad8f5b4e3764ddf09b56614a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEH742503009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7614dfe44a3faa2e73fe79b00a52684d486165272aa1934133e916335a29b6e2. 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/US83Z2521602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fb0da49dd15ed36c59384a1fab9513529ce0ed9e93ec072851713326186eda. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:53:09Z), 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/US83Z2521603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53890d5ceb7128e7bf1f647c5a5d644ca74b479738ac21ae99e307e26cc62eb2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES35G1201007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47356621f65bbecb01def6aacb0c9e50d1f5c8237753de04c16729e57060d9a8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES35G1200913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ba9943670ea966e182ae872f36fb9632fed84a66d2050949b1e95937146594. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUXN22426467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1e8edb6190c0651aa366828c0665b8183c64a2096bc4d5c126cfeb91b3a332. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEY472472810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a796ce0e556dddc1f80a7a6d557a33f425206003ac7b6866dd3221cc0728f09. 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/UKFHN2300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545b4de488dca68c1677bd34ea31a0b4a349a803318074fae1d3744412359c04. 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/NLRD52200872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba33ac79bffab86de6a135685f48dcbc8a6aebaf84fab9c0c4ddb0122ff02e22. 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/GBHFW2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa5e47cd581288eab32b03a9f6fd9facbe23e250e6c2f5789955fc833cbebff. 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/GBHFW2300048.
This Liminal Place - James Harcourt Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76f25446aae2715a80f37f970789af00f2ce14355dbcb2100b25d9f9a1fa399. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/US83Z2484523.
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 0x2bdb4e99a733b1d95bf9ef4f87b3383357bdfaa9f76316ff95a1b1d9575430ff. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEY471826543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccadccdcf141f6641b7d07ba279f8e8c97e98d3c4a7f02e8cbd274a1fc835c3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BEN582400567.
Act Of Resistance (feat. ASYN) - [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717f51d2238d4ab0d52e9d39418c66cf2829086193023a2a57488c7c1d676e87. 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/GBHFW2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e323de41ea17411c0a9fe050e757faec7ffa513fadcdbf76353313d55337df. 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/DEY472273629.