"Who Killed Cock Robin" is an English-origin folk song and nursery rhyme. It has a Roud Folk Song Index number of 494. Lyrics The earliest record of the rhyme is in Tommy Thumb's Pretty Song Book, pu
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 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 0xd49108a51bbcc6f1825c8d3a93f5b3e849004282b7069d3165c054f82fa86d29. 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/7d5f2d5c-4de3-4148-8603-ca6900abf907.json and https://artists.proofprofile.net/proofs/artist/7d5f2d5c-4de3-4148-8603-ca6900abf907.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 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 0x3f88e043525c901339f9467a366042d2a5fe6b083efe38c1f84c2c07993d05fd. 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/USSM10203223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c28e085c0bfdb2b04941214e3ce45c0f19e0486db79574ad70ee45ef37444a. 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/USSM18500432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5ff90d19272479552adfd014ce040ffe07a7dd6328f6cf24efb1cd0b7379ac. 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/USSM10203224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dc4d527c7323390142c3c1d15dbb41e426c5660fcbba7704be0f73fcb155af. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/USSM18500939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff204654dbf1c74e59a24c993fc440179a2690ecc5fae3ad65b47667abd559f. 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/USSM10313926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ab80ccb330f355ddb041474e1c7e3ec704f0c66f032ce1246f551452a4e2ef. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/USSM10010967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb8c4dc14a56a8796dbb38ba24eaf4799f41baa5ada1f00ef3f811b8e19c0c6. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USSM11307564.
Thought You Were On My Side - Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027e377fd671a04f40156a7e3e1e91c6815b5e9a381b0773baabf2993c9a7e4b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/USSM10314196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb871e456c2c53f5b729de5fc2a56a1bba9289adbe6d916380cc42d6052fb614. 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/USSM11307563.
After Here Through Midland (Expanded Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2096a329b66c28f8b9d8b85e79994024297ffa58f81ccbd938b0850279e4f4c4. 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/USSM10203221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae9cde47f7a6727c96885b23ba06e281f093002806d9b69ba55a3e7a5a6b183. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USSM10203222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d3cecf23e06c3120ae07bd0616566d6c66746c058422d780973d64fe75a6cb. 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/USSM10103805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe53f880bc3f2d45263525d3f11c78ddd49228ed460541727555ba847b75e59. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USSM19906449.
The Biggest Fool of All - Dance Mix/European Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ac7aecbd0df258f5fafd4aa37984cefa62f00c1d6c4de25726dff82d875586. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USSM10313931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704de72130f868576d266fdc8897c843eef56a3ff455a6fcc292bb5f1e3ec573. 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/USSM11914348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9859fb99c86ac91f98fec36a92d5eac0fb36b5ddcb3794225195a7b86ed1e439. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USSM11914349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0686a7fed94cc4d381d572cb06cc1bb237a62c7bc5e361869bbe87f736c2e95. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USSM19000777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7005e6258570e7c6b971f73cffeae05815466f6da447523c9c9074c26f4f8e9e. 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/USSM11914351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847d10395572fe391db7cb278769c263c524b42a93fc07b02dbe04661a4aad00. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USSM10409435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca55259837ab5d90055f8ceaea0af2a13187dc40160ea8613c621b4798b1ef59. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USSM11914353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8547c7cd2442bea19a4b673e7a1cc25b3fb4f61a1c457f69606e5c166afba4a. 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/USSM18400423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7537f09fd978bb7cdf7ad260004f0b754748d2f6e06dfb7206c4561298ce1f2a. 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/USSM18700509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0686a7fed94cc4d381d572cb06cc1bb237a62c7bc5e361869bbe87f736c2e95. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USSM19000777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4219ca0af823aa3079a49377382d187af9015bfa5df5dce51da16014b3f5fab9. 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/USSM18900378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6953a6820337a1a331d207b9ee581666416ed3c675a856d34876a773f923ca0. 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/USSM18500392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d647a1194f6e6bd2fa417048931753ee57aa4d62244a39221cf033e270977f3. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USSM18900693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ef467c123aa84e147760a734d4e3e12dc10ed11d737451de70a842f894fe99. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR6V80603103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ceec8bb027e102b0778ff54f2c6c60a0d5281437021b32a354823615f8a4d8. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/FR6V80603105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a47ab75119d5da8d14e6e5804cad7866337450879b81b47a1ba02f6e89485c. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/FR6V80603107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5975e53748b4c17919c4c3e1efe4c74aace876949c641dc1850e6377c76db8. 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/FR6V80922546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f445468cb201ff2ca513a1dcceee8dec25ed57e61a3be77b2e21c28bb6c420c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FR6V80922549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb7f1f723133f7949905b4ac2b72e9975ee6cb0baa8ff03e9115ac113134c6. 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/FR6V80922552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180c793f8fe55f555bd8788329fb3a79b1bf313278b2702b759881a75c457b92. Chain 2 (Bitcoin): anchored in block 957697 (2026-07-12T11:22:18Z), 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/FRV531000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b5fab2bc846d3bc45aed564f9be164176639d3f7b71de061f02d6318015973. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/FRV531000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cc3ac1c3db392f7eee92b6c8a95cefd94aac745f79a3ad0d32739713744f82. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/FRV531000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54de3f57205a7ef6795a3a13540082150105ed5e5e33deb838ec188abad94613. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USSM18700353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0654fc1ba4c75daaa84e0c960a6398f3cecf6312108f64c32f5bece39864de38. 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/USSM10805176.
Songs from a Bell Tower (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d39e7e56ee7649d3b820adaa00653e902b226fc0a068149ca47c3abcdf3537. 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/FR7Z81600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e129ecc244321afe15a695266d33b04b888f511382527597b8c618953b3569b. 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/USSM18500369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6953a6820337a1a331d207b9ee581666416ed3c675a856d34876a773f923ca0. 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/USSM18500392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e129ecc244321afe15a695266d33b04b888f511382527597b8c618953b3569b. 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/USSM18500369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a692aa90aa6b2db6eb72e5f3f82989eb46fc22bc1a06e6fc7a4c43fc843c8e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USSM11307565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4d2057f68af4ebf4a5e0d0c48a4680df809a2fb7f318fa51c1a758a923c214. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USSM10112252.