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 0xc7bf0bd40c5ae4088a2b79aff8f58696e7c9581e4ea014ad119fa5d26438207f. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/446ebd26-63d0-46e5-ba15-4fc31d3e0470.json and https://artists.proofprofile.net/proofs/artist/446ebd26-63d0-46e5-ba15-4fc31d3e0470.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 0x2f77a0f9dbeb51edb350631f9243a3784bbcc437a40861d5532a6eec41a78db8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZK6L2234739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9cf8a5df3bb26956667f6d56678941a5b66f8d64fe7dcf03cc91444eccac96. 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/QZTAZ2210438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c388688377c9d12f64538ff051c1463e5c2808fac4d284f4ee8e656e062f35b. 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/QZTAZ2213212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6557f3b4199cee4de52837ce08f8632d9b442fe646024855f389d0f2b4eedcc2. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:36:30Z), 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/QZTAZ2231018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bba7c7d58dbc2c36156100fad3d422cc3ed1ff3645102f37f4ce96952739343. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:55:52Z), 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/QZTAZ2246810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8580407bd1a9cca254d5070934ce32c2e7d4dfe741359ac7ffbf07a222dafbad. 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/QZTB22275728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c44ac846353c8c23d12e32b51415dba85b893f0acc94e0162b2009bf321576e. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZTB22274433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a61745d9b66762fa8ab55e87ba6d98a22d5c2a853cd685f8334c0d2ec452f68. 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/QZTB22274407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace4f235e85413cb717bc965e85d48ff620e15677311db39cf2bc46d255226f5. 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/QZTB32211919.
420 Rides HighAndHappy Part 2,presly,HerbalCat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625dc7e4fa519e5d7b06dc114b6f971bdb9818408ebe522401d70fddc0a3eb81. 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/QZFZ22307005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0c294ebbd168a4d139a8c8495a01985266030cd98ab6d2fa9623a395c21569. 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/QZFZ32360118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17826dfae42b362de36e9d456145fe8f4e96830cbf5edefec6f58fb9ddb1e35e. 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/QZDA72381717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732a92e99116f180ea262c8546db6c3abc2ff3e5706e8d75b42dff7eaf2f8af2. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:40Z), 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/QZTAY2395258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c1e852bd491558c9435b2f55813e0d02a3ab980cf07d9ef897e827aa043c16. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZTB32367875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35d06c0af54e36f19ee6051f565abafa7585e394eab1192634f39a173fb478a. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZTB52367762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec3fcab934bf28e3817a94ea9d32316c236c205e9426e67cf34f8fc0f281eac. 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/QZTB62305056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c02ed56e5cfbea7ec70850006f4217a56f7de88fbcb8c605a31cfcb82b0fdb8. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:02:39Z), 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/QZTB92348179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc139fd0f65a012e6bf801e326bd3ede7265c61bce716d723f9a79a3ddd4dd16b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTBC2301085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7cc4a1978c6856c29c04e0a7c0bad4cad0d77cd5f25cc8bee5c84eddecf262. 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/QZK6N2475621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54183cd3c8c8df1b463ff49818666318f50bd32be3533ff70b9d75bc9fddf94. 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/QZZ7R2451367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88815f87fc8a6d280a49357c701bd3fe9af1398ff448e7a20b39a879aca7ec2. 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/QZHN72599540.