Tom Mundell, better known as Metrik, is an English electronic music producer from London. He has been releasing records since 2007, primarily through Hospital Records, the UK-based independent dance m
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 0x7ef79137541ed914ae455c248cc25a7e8aca958d9831e45266fc2883c4d93b31. 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/7373d3fa-8388-4b55-a797-9d9d31d694ae.json and https://artists.proofprofile.net/proofs/artist/7373d3fa-8388-4b55-a797-9d9d31d694ae.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 0x1b30c09a95b678fc458f12a224712190b3c8bbfe4a9e2f496d603974363dbd11. 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/GBTMZ1000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cc51f9adaa016c384f549a753809e91d484bb694de3ef55560616937355793. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBTMZ1000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7486922ede64d4d6c36503a2983cbf1099fb48a8a35b8fada885e8357d4596. 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/GBTMZ1000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2732e7853ed30419f0e88ad8363159c54fd85fcac8f7b3464597c7fc979ce3f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:29:36Z), 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/GBTMZ1000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d2fb0377631bb949750f60877e6091fcbee41d1c308a6c6917f9c75223b367. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:33Z), 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/GBTMZ1000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2455820178689245a9bc71a50c94ebdc3f5d38afe142f0c8b355e3d53ab23c1d. 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/GBTMZ1100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93cb0e6e9c89be2aa7680fd3e02566ced157125ac771c028ceb3b28af5da796. 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/GBTMZ1100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b8be08662caef0d849212f1e195a7754e7644f7ca49ebd9c3b7590c877b9a3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBTMZ1100125.
Drum & Bass Summer Slammers: 2012 Sampler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf157303bce1ebae3bdb87cedb380da6557b18e4078f6a5d98f4667f2b9b80bc0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:50:16Z), 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/GBTMZ1200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63fc5edb84bef1be1e4b60363c4f2e50d946fe30d3262de39dd375036bd6da6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:03:28Z), 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/GBCJY1400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c58b8ee99bc488fa30daed5ffbf73fff3ed5654897453f23519c7b11c9f947. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBCJY1400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6d1b99a3f6fa177ba7c9119e00427d231e7c521ab777ab488b58e2332fe261. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:19:51Z), 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/GBCJY1400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9779a988a70ca37f8bf4375fa7bfadaa88050c85b5bf40feafbe9339bb6eef33. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GBCJY1400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21672b88b98b5f75804c3351fc19895a8cd42b39cd2920348592fa7e027822ed. 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/GBCJY1400148.
Make the Floor Burn VIP (Spotify exclusive pre-release stream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625e1d375ff5c54d3d139027f925ce0ccabb8f868254f8cab607e65ceae95e27. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/GBCJY1600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc373c401eff7f827437a739e13dae90a21722ef84fa0bb7500bd599aefa5d9f7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:10:56Z), 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/GBCJY1600217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8f650cfb5aecd1fc6e3d03657190b333b507750eb4ce4d957b2b31e24f1538. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBCJY1600219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be940315f3df2774c5ccba501bc7a2602743ec6f8c4fa9fe5d381fdb7a4177d. 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/GBCJY1600221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc606bdf191aecbfb051f35b4d851392f143cbaa07f29addf18fb6719be597076. 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/GBCJY1600222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24044e7863a0a99292469ac06d94cbbaa500cdcc1601308b28e56f8d8bb17a34. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCJY1600331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c426a8762f4d482738348e0bc3a40c6e0960668fe6e7d17d365693b64951b69. 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/GBCJY1600218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3293b6292c72cadf1211750bcc617aae2e5ab609dbe9a358e4e6a965e087e165. 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/GBCJY1900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83569b3164fcaba7514b31f7b693009c5782cab2bc32c7e249af1ef72abb1a5. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GBCJY1900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a2ea598becfbe10528fea7d0ce57dbc270257822e43a2ba1aba4a83ad9158b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBCJY2000415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4585b242850b271a8e19e19d4839ef88669c6f99d6aed6edaf59e2d36a23216. 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/GBCJY2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd7093918b48aeba95108d0a1c2e75910e0716657d648b68f8b61e2dcce14f7. 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/GBCJY2300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0e2dfea07135278cce2a69414c3c69331a25ad49fc2d00ea155014685e01c8. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBTMZ2401224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66457f43b91e863d605847fe2460c156387abd88c0939f6c99f1cd9bd8e724a0. 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/GBUM72301964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb748d3c02bc40bf83b9374a1b6fd771fc7618f5bb4adb6cdaeeaf7a048c024d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB5KW1703888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39323d0c545e5e02f133ed1c0140a00a431350c425b7f18132f9902f07b78570. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCJY1300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d311dad09e0798f1f93c56f420074075b810a6e1a85e6d38447868c3d92de29. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBPWR1620030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de24845aad396802212952b7eb3a122328945bc131e4ea9575e75b21fc7ba6f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCJY2300515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb748d3c02bc40bf83b9374a1b6fd771fc7618f5bb4adb6cdaeeaf7a048c024d3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB5KW1703888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ead5342ed6c57832395c8b41a1679d4185ae2b0259ce910d358b70ecf80239f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCJY1100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de24845aad396802212952b7eb3a122328945bc131e4ea9575e75b21fc7ba6f. 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/GBCJY2300515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fc25f105d5ed9b5ee67c35d31082f27b7805039eb6409b921d1f8e4d69cd89. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCJY2000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fcf1e3de73ab9842fc2cd0b68933e8b7e23117d304b41a60bd19b221e82fb5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB5KW1803044.
Save The World - Futurebound & Metrik Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb6be1788022fec6a1e43a211fae4f6e1517cf72fabe3ed90913070d42e7a96. 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/GBAYE1100781.
Flashlight (feat. Ellie Goulding) - Metrik Remix
Flashlight (Remixes) (feat. Ellie Goulding)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bca06ca83945b536fd4c44c6ecf2f6f596f997e052bcd9c08ed4c5014b6d16. 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/GBCEN1400884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f88372bef29c29813c13ef69ae6487f39376c86870061f0bc4a65356fd03f1. 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/GBCJY1900146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24044e7863a0a99292469ac06d94cbbaa500cdcc1601308b28e56f8d8bb17a34. 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/GBCJY1600331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ee1ca621f2928d40c16a05b496c56be20ce9610ce038de6611b0794fd92388. 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/GBCJY2300395.