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 0x5231ff5ad3a220d0ffce8df069c6d84abf7c82221625d534bedecec1bd4c2d79. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81bfc306-260d-42a5-8831-ea3729372856.json and https://artists.proofprofile.net/proofs/artist/81bfc306-260d-42a5-8831-ea3729372856.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 0x0f2f96b64a51f609960e195c79c2441daf950cc5e498f44bba59012f885fef79. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81002712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2599084e42130998e30671dbd5e62318145dcaa155030d6e31243636d6d2e251. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR6V81002714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862f241b61a4b9a467f9d283bcb1ca0530c2e4987be708f710cfc451635c25f2. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FR6V81002715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4427d78e1aa54004baba37f45199f1678eacbb08b4b9b95e1a924b19828538. 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/FR6V81002716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f89811c56f798e7c2068db4fdbe7d1d0ee3aca3e275789455831f0dc990d1c. 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/FR6V81002719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1493cea32311ca20998b834bca7ba44c7794c7f800c148e194f84bcc9e54a05d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR6V81002722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ba823fcaa9b501d0e74e62b801ec5001251bb58c2342b58ec532101ad456c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81002723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fb6223c092019b541fa85b8da4c3956f140d306e5bb97ff73cbda47e72edca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V81002726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d32dcd3f90d2e90f62c3e94d2971ee14e80af3d22e90df127af65cfd206957. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX872119562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e45ad2c0064b9429b9bb345279cb0b5f45776eba02f9a6db21eb96a4d2b1fb7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX872119563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23308a69d1cc66c486c8fb361e2a42add420fc330a41225f86adb89a031f5de. 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/FR3IY1600160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4994d6504c1d253f719e8c73112d5310dd113c35296f94b8a26e3710652598. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR3IY1100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afc69fc7dfe10f02c05384de797cb25e2b3390e0dc6453c3643fa8ab3b1a149. 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/FR3IY1600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ae061e3c737eb82147a71806206432c752400f3ca3e14487f14979a4b923ff. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V80902706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832c16f553280d91370570bb9af4e0be09d5bcc2eba5340a398d5aa59ba59bd3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR3IY1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a8b05fcc902c356429501f58909fda5ba2b83bb7cc0fd2cdb4bda02247ce39. 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/FR6V80969914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4272fa9a3ef112a7fd23351c781a5f333c5e861e98435524aa6f03c02f050ba5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR3IY1400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed73d0b7caca7f873dfd67d079c19dbebf417aa10c5a2b7fcf5e04f7e12d2fcd. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRX872119565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f7f9a014e199046ebb1f6e5fd4f12f6226d0fcf12327705c69bf4f105408d4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR3IY1000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbd9c456ebc6921e4ffec75582ce251c211dca6559de42f1fafbc8f3a6705b2. 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/FR3IY1600170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4a9b5715e002193d6ad32d41e0813956eaee8e0cf7ba850f49af9995ebfbb4. 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/DGA062070041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683393f317534ce4bacf30308c1c2ecc97b27045e1ac79b1a25285e15fcc1d59. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FR59R2278317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15b7c8b9e411b3b5a55ab1a5ef5f2c23bbbb8b58e0be3533eb45fb5809172e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S2242652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388d1db36ac9f7f0922c1a60a2866afc3351dfcde652d0b3b40e25d637cd444e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR96X2301392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a61be2594b5b2d426a83781ac68d95b6fb0c480b382b8db696c683d6aee70d2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2301397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ce2243a22eb597b89807aaf9c66e85a6f346b0d7d3258184d3772ca4852dd3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR2X42334679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085ec8cb6820b776e3bb0aeb97bcc9ab089ecdb997a680e9f3e050a8dbb1f15e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA092379255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea120924170767b480727aade414926d5ec10863c5142722594a7824dcdddab. 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/DGA0H2374143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fec71de51f0a819e1f1f02da7d3b830064378e1626fa55b048675fd8eef2311. 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/DGA0L2338376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7507dc25c4fa1dedc3622747d51b383d192b197da45407919dde259a45dcbdb6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX872190262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4d5e1eacd2f3e72fd3e845911ff19da839259bdd91249725bdc77f803f2ddc. 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/DGA052222185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de631919878ce02bc8a9232766ff289c604dbac5647386d001e8a431bf10550. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR10S2403227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda6de3563166c4d062254c44c2a9827179639e5f1bb88f2ae21d7ab9d3323de. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR10S2403228.
Strange Things Riddim (Riddim / Hip-Hop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c1447bb70c40c30472f0bce6771c48f13687bf572d0b3029eb85eef01b23ba. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FRX202539585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef7364b5f4d164ab4a6fe5b954915c799a50cab477783dc5c6e7ffb5f137070. 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/FRX202539588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679e2e6bc758ba6ab247e1d822ea8ed40cff771aba34718a6a4a1c686d87b3c7. 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/FR59R2369594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f68e44db0e53a4154ae62401381b5358971c4201ee147c20b0d932ee29d6c24. 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/FRX202502906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6cb8b9f8355c917d3cf9962db0a62e117475be1d079c75469e1898787fcb0a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:01:06Z), 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/FRX202555564.
Strange Strange Strange - Strange Things Riddim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be43d69c16f2eab7242021510bf9263ff0eefb40c23ab20b7a3fd625ceafaa2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRX202555566.