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 0xb2c8828e30c05c042524eaf390527eab4668060e183561790ac422279f535923. 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/128c1f83-570f-4872-8194-36a37ca4b581.json and https://artists.proofprofile.net/proofs/artist/128c1f83-570f-4872-8194-36a37ca4b581.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Balinese Traditional Massage & Spa, Vol. 2
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 0x60b0caab0c4db2b7e390322d2e40a478fb926921cb822eba3637457e908e60c2. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/FR10S1458185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfd438dbe1c4eb33e57cbc9af2b102d3cfe2448873aa54e081ddbd96e209d78. Chain 2 (Bitcoin): anchored in block 957957 (2026-07-14T05:10:34Z), 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/FR10S1458186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b6d74692ca73fb50391a753666f9c2f17822ded1213b0b621a3879c251acb6. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/FR10S1458189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dca81868a772ad0ca110ea126ed7fe54383839d19185386a21cb3382f8ef1b3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR10S1458190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0983510a3fe798dbe9c7d6f301dbd09cfb9bcbba36a098bc21279c016457c1. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR10S1458191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707492fff6a8529b8bbf37f5928736bc1c5ad95661bdb7edfd18d711d83b2c66. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/FR10S1458192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dc02b42fe20b17e960879d80d14ce174b687cd2d2ba5b4f617914485712577. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FR10S1458193.
Balinese Traditional Massage & Spa, Vol. 3
The Best of Bali: Sweet Memories Instrumentalia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b493c1219bf3ff89123c840ce3be67cecaff6e5277a1239f11aeab9df60ace0. 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/FRX991509097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35b388b40ffe47762432a97b60d99a65dd1b2135ea01d413a35de2d9f652320. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/FRX991509098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c794342f4990971561b246a7d77ee7a1717de297062456d43d7cd4e8f593fde. 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/FRX991509099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe56d9159f80b2fc7d9252b6bb20d351cd7cf06815e4297d3c1229a60ad1d9a. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FRX991509100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f87d7d4219e8184d5926139756b03cd2c0fac9e8dbf99853e1e40b76a5ce96d. 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/FRX991509101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43db22c894c4e007d20b305c217656f4851e71c771d32333edc8c5af78e27d56. 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/FRX991509102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef54d02101f98977d8ff2c6e89f27b566a26bf540f37f5013540c8ce779faa0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX991509104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e4b43a2882a2ce662fb0ebb3f8b7e1ba0251b3530284f251e68ea2faad7521. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FRX991509087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7feb5de183623ef61cae887feafe503e28093a90ad14f9dbb3faf76a74200a. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FRX991509088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccb1db4919b0ec9b5a6b29dcfe5255505b570bc20da211c3e328ede8dacc311. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX991509089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d167382111f47674381def35473b38ef783446b30787d71e3f2b1bbb993dd01. 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/FRX991509090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fadd356a28ff714075a18848e964283145395673e7bd4fc0b38fb204612d671. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/FRX991509091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4d2ba5dc9ae32118702a1225503242e41db11a8652124529f32c0452e81690. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FRX991509092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7065d152f13468ab9582c6df893a2e608984020d738424a9b673b63c05d5c191. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/FRX991509093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f46df5d5872f50dc3ba09f62de3b6f5dfc8af12a740c4f7f936224da52b6aaf. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX991509095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3db20b31d75e3a0bfb9327f9378f2a6e91ad32440518275f470d9077e96d8e7. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/FRX991509096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b655ac2ced3e9899222fcbcd2294efdfcb1b4c2485692d9ecfbe50d52afafb. 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/FR10S1458412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ac9ba1d50979f0e7d034b9b6b67123e21a7a75f5a148d120cf93e38afd669e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR10S1458417.