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 0x5ca192e69d043600e9c9fe700128cfd582de88f67051bc46d0093bdca472c014. 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/4166ea20-a638-4699-abca-c34eb64c240f.json and https://artists.proofprofile.net/proofs/artist/4166ea20-a638-4699-abca-c34eb64c240f.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 0x5f65f2e9921d7c4346af769a542088845aecacb9dc7c89cdf13aa7cfdf4ae88e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZES52013109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc859628f66dc2c15d287a704ebd524b5ca741d4ede0a94b449f1d318fa1fedea. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/UKKTD2000142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd0894a55c1bff859b3f0f6ec8f7990b4d53781f606ec76378ec866bdf6ae4d. 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/QZNWZ2229328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808fd9c6c3a502ec49a694eb3e0073b093a76730e612acd5b640bafefffed385. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZHNA2373099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a9e23f10a00b8677750eee48f77c99d895af442b33b56c4f9771b08edbb139. 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/UKR6V2310821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f29baf391ff60ac08daf194c36b3776dccd423daff80dccfbb3fdfc09e2e58. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNWU2376125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6079a0d625d1f31714c1af47f4657c1040c218652c0fbec8a8caed7119ab6b. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:52:48Z), 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/QZTBC2370136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552e46a9dd5500ef513fade93e3a8c2c1c016f7212f68ce41b453518564bfe86. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZTBC2370137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caea802bf5452894fc7c310d9b4ddf6cfcade21b74940bc9c11159ff90abc2b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZTBC2370142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb01d7648c7c2811fdf19666ea34b0161e20743893681e01d7065f08c924947. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZTBC2370151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6172d243e7ebbf03c019c2048209d89fa360cc9e0b7cf923ca47d536ae71bc. 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/QZNWZ2356125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63acf777cffb15d1d0014615f696dcff4d84fae91548d01340c06c934b728f48. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZMEM2405825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a74c2a1118ac34df54de0701a0b9cd7829e66b1d83f18ed6384aaa7c1efefe. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZES62469696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fd7e103d456e0cc95eba8491ff35d762b435d645dbb275d08155080d5bf602. 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/QZTBD2475752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f9d7e0fee92b85ab4cdf93781df0c5392837bf79248f0115d79e4d739f1430. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZTBD2475753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa338d49a02e2fd5f7d69e5779ea3dfdd7ca129298a0e2fb5aba16c3f147ace. 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/QZTBD2475754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bafb1238c4a5a11439d8441a24374f75bad5fedd4eff69c09aaba3cb1c6202. 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/QZTBD2475755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969c61455eb9d11420505a06f32c77519ce3a150a6e7b2424cd2014c0b0c2f9b. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZTBD2475756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c6e371cd5a016de428ea2ef9ef7298f7431b2c1d4b8f00a13f12da77a44f7. 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/QZTBD2475757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573c1df5a231bf4b99e8b952782fe1eb1126df36127c8425582be4d496fa41ad. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTBD2475758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29056d2ebf72fc5793b69dd8e5d610aa5279587250a2216ae2f4d0ef871d59c7. 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/QZTBD2475759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21d03c5cff7cac5853275bb020e7f06029b7175a08dce676641b59377ac2784. 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/QZWFM2457238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aff4923792e27c0363491afef99f41a22a5346a3558ab4ffc232d27568265e3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZWFR2481846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342fbe609fbc96d47f99fd5102a049ff7db1ba648ea54071d31e36359ccd447d. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZZ7Q2441899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3e958d178f324dd57986760838a1f8de6a676c072b55a2a8af4448b9ccb33d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZZ7Q2441900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aff4923792e27c0363491afef99f41a22a5346a3558ab4ffc232d27568265e3. 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/QZWFR2481846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21d03c5cff7cac5853275bb020e7f06029b7175a08dce676641b59377ac2784. 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/QZWFM2457238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc43d7f4af1a2e31c9a64d93a8bb1415b24124b3a5c103cea3800dee32dbc814. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZWFM2457239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb049470b9825ab51e5340ad1755f2c54de486f32c294165319a3d5a5dbe75fd. 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/QZWFR2486403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7467ec0e164785a307b7ade5aee6745e677ed67faf2c476c89d416e72058215. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFR2486404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137317f96f02e2df04def2dcb39c7e31f4148197d89eb95e624f64f942db7258. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZWFR2481847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd13d0130dadff46381e419dfb4d72bbcdd6e166e17659d6a3dfa2de4fafdfbf. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZFZ62555852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bc27454ee7329331ef66f555d243dbc06dad207e36892f526f238974623525. 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/QZFZ62555853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958372fd64c81acb34c39d6a13711377955dd5ed3d3e5278edf3a5f8b4f8c68d. 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/QZDA62568675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d5a4a29e20345faa6182a9637dcdeede352c37e872366abe8cc704e1f8239a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:15:15Z), 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/QZES82549224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2dfb7fcab539451406868dc93d3e79376d57d47f8f1e9498b37c433237faa4. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZES82549225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b876a1ee86cbdd385ca0b488b0d184b690b2e38c84fd4522b80408f184cd2e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN72501829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd13d0130dadff46381e419dfb4d72bbcdd6e166e17659d6a3dfa2de4fafdfbf. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZFZ62555852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bc27454ee7329331ef66f555d243dbc06dad207e36892f526f238974623525. 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/QZFZ62555853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d5a4a29e20345faa6182a9637dcdeede352c37e872366abe8cc704e1f8239a. 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/QZES82549224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2dfb7fcab539451406868dc93d3e79376d57d47f8f1e9498b37c433237faa4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZES82549225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2cf797d8d3977a1489dfeba546e50fa04987057e93385926768587c2fe7fd1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA62568674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958372fd64c81acb34c39d6a13711377955dd5ed3d3e5278edf3a5f8b4f8c68d. 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/QZDA62568675.