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 0xe3391c874818cc912c56c94df09700628a8420ef17e6a8d2cc7e7701f32afcdb. 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/10a55e2b-133d-4f0d-89f7-e64fe3bfe5a4.json and https://artists.proofprofile.net/proofs/artist/10a55e2b-133d-4f0d-89f7-e64fe3bfe5a4.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 0x581f9515063bc81d5e2472d96000cae4a5a9dc754f97bfae346a61fa6a51311f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:32:12Z), 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/THG010804965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263065127dc27663574f35c063984abe952a7bd100d8bb4864f1d024b0defffb. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/THG010804967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc793f2eabb989b99837ef15782894a2420092f0f050c9937550f013223c91264. 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/THG010804968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0fb162b700e5fb09d52ecb742eb405ca10c75f38bb33c4deafa3c17d6c73e8. 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/THG010804971.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614c098526a1f873118616d8dd2f0ead2eecfa8c0dec8a799e20fcae523908b5. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/THG010804970.
พยายามกี่ครั้งก็ตามแต่...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a1043af2daa42a4c36ad358d5aab8bffb702059e715cf7d65f454fd6786575. 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/THG010804966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4321bd6b653038e4745f7dea759510831382752ffb15f9d74ce36cae1bb97e07. 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/CH6540825227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cf96e384c194f1fa56d65ce3dd3fc0e9eba2f5cdf4444374a6a34c0bfafed2. 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/CH6540825228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55312486c2af302e7ce2be36610b04dc7ad3d5ddf975db6e9e09cc1fe6b5a864. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/CH6540825229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9560b0948a2a5d7af881d3b6b426604484422536e57dd839c6759056445c1501. 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/CH6540825232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358f1c395f4bfd5f8e8398dcbfd551dae0d222f0dbafab91eec0f54b3c66f548. 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/CH6540825233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298f2ceb960403198b01fe5333d9731da48ba7e712d6f630409f7802f0b50339. 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/CH6540825236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331cd764a7cac58a9b01ab603fa6bb6a8cb603c3882083a7281419bf32e37d84. 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/NZRI11000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da25376f67ad956ad40125e63ef3ff89c4e898484f3d6df020d8bf4c25a3316. 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/NZRI11000454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61aa146df84637d2185e2f35bfa5ce1b3ace11be781b576eca191a08b382977f. 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/NZRI11000455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf9c27b5e9ce5a92d60c42ab0fd9fbafdf4e668e43fc2a7e609ab5baf6faafa. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/NZRI11000458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3672d81505e7648d029ab9bf2834fecadf7f6f921d6ce07c4cf66e0a67a3ab. 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/NZRI11000460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4248472c44e7c779042fdb3f482df10694876c9445cb63634e9ce5d74c7a5f35. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:28:49Z), 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/QM6MZ1489823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd275d6408e1f6563f5301425d10825591577e7ae20a76d3e603aa1432889a40. 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/QM6MZ1489824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105088d725a485d99f78cee5ea564dc0cc4d66ddaeea44f7da9b3518371195ce. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:31:49Z), 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/QM6MZ1489826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2924580cb29e640c74d4d1cb2fd6df02e831e1143664410595b240f9d304edae. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:05:36Z), 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/QM6MZ1489827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ba21c11f8b84a62a2d88f6150dbe898f6b9f28eb8355629273db584ab71ff0. 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/QM6MZ1489828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f824d9f320e2d39d7128cdaddbd86edf70ad517ec8a7482ca3c4d8e4e24d27. 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/QM6MZ1489830.