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 0x283035609a6be3028ef259477d889759da4ed1fdcdbf3d32c926cf64af9d8f77. 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/4e137c3f-09e2-4801-830d-a1f500dd31db.json and https://artists.proofprofile.net/proofs/artist/4e137c3f-09e2-4801-830d-a1f500dd31db.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 0xed61897ee1d5cbc7df506efdd8bced1358bd05cbc1da8ec61603bea57e0b17e4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:48:05Z), 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/KRA381703851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4028cce39756a226dcfb1c37725a9ee4f0e5d32fffd65e0b1c94b01ab033b0. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:20Z), 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/KRA381703853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a0c35b13a2d19ea28a2c4b546c56d2627a92842ab21d10c965855f2a661961. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/KRA381703854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc06b4a4d0800496436aab75c46204e34109368afee457145fcfb3386272717. 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/KRA381703852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c32cd13e8b34c71bbf079a3785a554505367800f93559995311d3bb4141bc01. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:12Z), 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/KRA490800292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587bb03b29f82725203d279adbc118cc97c0c784006421c7d204c74b9271bb2b. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/KRA490800293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171625fcb2905d99a8dab7f776b509c59c750549f5123d9aef0086c10d300bbd. 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/KRA381802391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748c24461f701b92a69d18152fca60c0d3e60471004cc6e3ddc13aab43167064. 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/KRA490800294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38e3871fb8f98a46c3c1c20436ebb3609ec4914945c80d18304b4d9133bcdca. 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/KRA490800295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58836bc82a67caca82b551496351c315263617346978e31ee12bb5b204f3f122. 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/KRA490800296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f19921e9f9c5501328bbc638ef8db77fee2c6771758f4ca0ddeb6735bf9ab8e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/KRA490800297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96c03901c0e238ed3d61126f4554a66f5d91a92d441d88d03d7a6e6d3785eee. 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/KRA491000189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b222cac98c10b4f257657642c6441b75ba9a96201428eb1b91faa2ed6d8699. 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/KRA490900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9035f8f34b64a603a602e01a38ac8b8677a55acb1aa3589e2fe3398fd3ba016. 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/KRA490900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d4a171a394b2dea713440fdeb93fa60cf46f965bb0dc34e9af3314337977b7. 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/KRA490900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5b44015872a65d4055825839ed239a7b63481f396384035f42aa667828d296. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:29:10Z), 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/KRA490900309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f9a77332d65918c455f554e27412c8cac3f7aa711b71e3326970e7410615d7. 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/KRA490900311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e971014367b519efe0d5b3e1fc6eaa8c9bb36ed46b043556eceef6b1287141a. 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/KRA490900314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35df77d6805a858423a8624091e1a7ae874a1c7210e17cdfc6b34871e12f7872. 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/KRA490900310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5f110c532907abe90986eb027cd3ee653da981e2f54165f6d91b9a1c789db8. 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/KRA490900312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36e84e28fea252e0947ef28245a57dc7962aaf709146901ce67d54c02709f37. 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/KRA490900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd222442097d3b4cfecc9658dbf3cacbb6df9facd9c916a6c481004a53e1548f1. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/KRA491000187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8b376ca1bd7348a575150df89cff7327a420f44cdf953a9d86330c8181f621. 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/JPPO21006160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a9de2a06f0bb434b3e49ef58712e9d2836a1ee80462b11553932d6758c9e59. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPPO21006200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f19252e51208f9c09dfb9445ac4d4eb9c607c6e875c4079de1af6ed5528f8a0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPPO01076275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35dcaedd71a7555a4fe8c3a0991b586f666db51c3e595594c6efabe83a1bc54e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPPO01086470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e457572886d1532208dac311ef73958c2436f1a9a4a667242ca6fe510cf198. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/KRB101000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b7920fc546fe6815140e08b314eca02a3c5a860e80dfd55c28ebe43ba0cbb7. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/KRB101000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e457572886d1532208dac311ef73958c2436f1a9a4a667242ca6fe510cf198. 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/KRB101000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f19252e51208f9c09dfb9445ac4d4eb9c607c6e875c4079de1af6ed5528f8a0. 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/JPPO01076275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406c5e5fe39674577048c7f39efa3be5e413175e72e8581b9079e2021c5f4383. 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/KRA491000296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f523f7fb52c7abee5a0737b77dafbb5bc5a011255031f58aa7b2ed230eebfe3. 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/JPPO01139305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401759cb1bba20e5522d83605dbff32f8beceb171391a2ef5cb67828dad664a5. 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/JPPO01152956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7231583bbb5a28ead0ecc4389749e8a45991bc61fd2bb3b94b23d6044f4c34. 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/JPPO01152958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc156172a4aad7a565f53d4a79906492de0e5b763ca97257807c95870de24fb. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/JPPO01150354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04ef81ef48f888597eff6b28374ea8b6c49194ee2d48f506486df20bb5cc911. 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/JPPO01152955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c405e058e7d0ca156fb25e9b95a5f47e48914d8f30a1cb58c89874ba319ad3e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPPO01106120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dba9ea026820af254bb95383442bbfa88d726d5a32443ba0900772ca9a631c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:04:08Z), 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/KRB101100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2c9ef0bfe3b86a5368284a46eb11878d120372241bff00329d774e95e475b2. 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/KRB101100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605ab3c149d7050f6bae5bbde13ad55b407219fe8357d9e82c1a9fb0c2ed2afd. 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/KRB101100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6b20c69b3729cb82e7811dc58fd475d80d209cd2e28f9f7b282654b6a25098. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRB101100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040e4be94bf52e8ce8c8d26462c55c86466ee6ebd53041abac6dbb73206b3ebe. 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/KRB101100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605ab3c149d7050f6bae5bbde13ad55b407219fe8357d9e82c1a9fb0c2ed2afd. 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/KRB101100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2accb5749719bb8a05ca2bf7ab19c4c3a09693c33d3606346f8f2ff63b8384b. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/JPPO01150357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd1b56edef9d066d174868737a3f43b2dba301eedb46589a1de2dc746f963aa. 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/JPPO01220255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cd0f6cada3ae0ab7e0cc8e4f53baacee565d9d856c39e49814ad219569d4f4. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/JPPO01220254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838a5700c18c6484242c60afdcdbc0546b8d68f4e12b661272792cd206723793. 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/JPPO01222531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf40c9e923d9dd7819da585fb88d1669ff9171630b5bb575f4d59bc77bbecee. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/JPPO01200520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda01938d7eb4deca75cbe1627e280b3f91698a4ca967e148876963d4fcf34790. 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/JPPO01200522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a06dccfa97c9652d4ee2a7ff369355a8d3144f8e3d3ec96df9258a580ed64c2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:40:49Z), 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/JPPO01216037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b316b02080c0761288c2f8017ef4a0eb73352ecf161d0e06e7e9bfd57b66c9. 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/JPPO01216039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846a40378c71a465fa1dd7f8d7bb9d0db9aa33f784491f4ffb8ec4c20bdf2868. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRB101200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575817edbf0a5b0523ce5c184f75b95f2829a4ca32400c56864b7283a2e3a561. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/KRB101200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846a40378c71a465fa1dd7f8d7bb9d0db9aa33f784491f4ffb8ec4c20bdf2868. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/KRB101200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca851f2e9776823038eeec523a8523fa7e4398d9408f6867ba5938901832dc19. 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/KRB101200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3a63aa930969a0d9c689b93207d4a27974dc2902f0c8beb51f1efd7de2e128. 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/KRB101200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7274a64f15f08e3c44c90eaf9ded2ec5992db975ba786bec39b90522967f525. 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/KRB101200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577ab1ff094fa195d0ca01e543e111f8779bcc03af6f98c24aff4510fbcd07b0. 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/KRB101200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb40af202fa5c40dee97e364843a98a2d8bc3245318abc0c11efa1d715c3d209. 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/KRB101200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3df9ba45a19a581fe186d93d8148559cc71f2610f9c6ca12da8fe501b957c52. 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/KRB101200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03950df4380c448bbf82518bc6d0029904bbd8f4c8e923a12053a0dbc297340b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPPO01331369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b817e6405ab60e5eaf0ce09f8c2fe14eeac2d4052063a04d6d1c494c0f9e348. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/JPPO01344151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6861a5bc099cc4a225d66013aeca2c4a3686f7f204cca1e4a4c57dcbd209a6f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/JPPO01341480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baf4dd257c1b5c9b6ddbdf7093e53b4b4dc2fa9e532fcd99b757cc5987a3738. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:53:40Z), 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/KRA381204908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6cca0eb40702a8a2ef4b0867befb48c2113e3f1d01cbfbec8a39afeaf6c11c. 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/KRA381205000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a77ede49a500c836e48e4284ee2f8b5bef4be2d7f949f01399339cd4b2005e5. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/KRA381204996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a8fb6b6fd08e9e1d465882244c45226216cab21734e17bd17241a1c98341e9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRA381204998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3ddaeff31b6c1a9d6eb1d1ea1192d4d0976d0fb2ebe3411aa16fd28869f716. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/KRA381204999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6cca0eb40702a8a2ef4b0867befb48c2113e3f1d01cbfbec8a39afeaf6c11c. 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/KRA381205000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cee8c82fb385494065b87960f9abb92a986f0d29c78745a7c011699f9102c6. 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/JPPO01349658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe043b5ead6a7d11d0e3749f4ebd23ce96db3e622c7bf35389703e1d6b90c0e8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPPO01408677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fd27cc3c01864c250bc1d4c7874b9c18d5bf1397c69084c3529287f53fe1ee. 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/JPPO01504132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b03c5a9cc26372e8e75393cbe22f5acad166332b5e96406c50450d746955600. 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/JPPO01504133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304a130de289cf5337dc7f3bef8fbbf3d372478e1e0b96c01142b2560898a633. 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/KRA381210773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23f391fc06694c8f241faf6b1d7e40a6f2ebea742b1ee258d88b78fe3ca8f8c. 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/KRA381210774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7831916b0ac2f7fe54f999c64956d02498376c3cdd2a887da044793402fde1. 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/KRA381210776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09a8e9d4b37c355ed718c5397213b25c656afb941050e012aebd29389d7b1e1. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/KRA381210778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90b79746329fa85870a70bbeb6392a70b43c845a1270348d7cc377378a5d80d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/KRA381210775.
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 0x4b03c5a9cc26372e8e75393cbe22f5acad166332b5e96406c50450d746955600. 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/JPPO01504133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a20509c28690f8b19555bf9e041fb5e9110e6e5d840972f397b05d0c41da09. 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/JPPO01505016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824f6e46bc7767ec8a69efd1e2c4921cf2805284b5c9b242948cc56dccf50e8b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPPO01505019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2329bb3191e25cfa5b1179eb02ee44e5496fff51b03c3794b26f726383ceaf. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:19:57Z), 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/JPPO01505020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dd5905a602a8844c24a1b4590a3070b37973633d0a0001bc6b3c7b105df079. 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/KSA012214900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dd5905a602a8844c24a1b4590a3070b37973633d0a0001bc6b3c7b105df079. 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/KSA012214900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee6c988df007bd16adb978929ef292a2f4c4be252d496323a7d9a502df9d41d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRA382403924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aaca33e1ac1780cbbc65626dcdd16a4e24dc549fd03ac91d68e642686e552e. 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/KRMIM2445745.