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 0x2c9fb0cf6536f285130b8b6ec76d885143ee5317b0712c17f1bff2b67977fe54. 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/01162c5d-2e03-432f-ae13-eb9026ff3341.json and https://artists.proofprofile.net/proofs/artist/01162c5d-2e03-432f-ae13-eb9026ff3341.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x195eab5610af3f02757646c42803dc22459e34db8bf6da09b2ff1245ea0579aa. 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/TWAA72400887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5e67856b10d83d0d49d478b66ff82cc5022d4e563143439f22cf18628728f5. 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/TWAA72400888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860fe3a0cf421e28a74d48442665986e74b0197ed960ff53fceeb24d9d5bb398. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/TWAA72400895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b8b12a73b948ddc237a851bbf7f84f382ca545ee4c2aaccc3cc5411ccb6366. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/TWAA72400896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97dcea4ef9c4bbf8f2c94e8cd1990df84180ffb4a846239863282236229d98e. 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/TWAA72400897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a1b83df97b06b03d5ca7cae8de3eaa1e6ee7c998101cc2a7fae556cff295ce. 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/TWAA72400898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc484063ff2021849a17056cb0451bf2f8ec03d4cfb27c01868d2c435f117d5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TWAA72400899.
鋼琴睡眠輕音樂 華語流行 治癒催眠曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a69e1535485b943d1b1df1a374106bb0a3138b6a0f73b80055850871efa0e. 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/TWAA72500404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03051fa3c10a0ef8f03506948d6290b0d5a53ad72159e19abd12d26eaa76528d. 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/TWAA72500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30fa04254ce723794f1521855c7e47676e66b5a1ede49c38404b56c5315e914. 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/TWAA72500408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1ab4a6244f1c0f52e6df1c65efb26b41795ec1459e72ff4a6c029753e245d3. 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/TWAA72500409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470e8e992d813072e95f5b99ae7b71d110d89fe6593f952b16d8b1349693ab08. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TWAA72500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487efa3864fea8364368daeb71b2393e93a16094b75966c464a980943734b2f2. 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/TWAA72500411.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b561378efb27c81a43df2d2fc154757b8acdc83ec79677043848d19cb0e9f7a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:32:38Z), 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/TWAA72500623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174d60352a11ee36e285c91d09d3e4e12fc43ae1f0db761ba37577e6cbca5349. 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/TWAA72500624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7f413625b653b21877ca957aca23053a3d60ec23844571fe52da00810395ca. 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/TWAA72500626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2454f676fde1415e75ac166ee3365812e76f3ea453059c451c89f3b450b41970. 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/TWAA72500628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de709843e55fb2e649dd84e2ab67e1ecb6cedc47663e618e477939b15c5998a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TWAA72500629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27e78f8d3332b66f9bf1239b80599c31f1af1606f4ecb7f4ebab2549777b83d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TWAA72500631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05eeb17f6c708a4842407a3dc823fa85051222b740969b1ad979584c88bad57. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TWAA72500633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99d73b7bd60711a99ea5641714e0da047eaea7a494ee937d5d4dda42ac5b009. 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/TWAA72500634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f68e6b127fe6560583cc0791876bbf6f6795869a65dc31ed8291cb3ddeae6e9. 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/TWAA72500636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f7c86ca9ab8b86faab5eb25f5bd39093c9600a0abfa0381dd25fc9036aab00. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TWAA72500637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b8396312015d47cc8709d9b2da0682a6b7a4ff462ddbacdd6bc6a207d29b87. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TWAA72500640.
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