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 0xb54d1387e2ea19a3c60731ecd1fade634f9b9c37104dcf08695348d23f594b00. 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/a544e874-5f66-4bed-8b66-838031432900.json and https://artists.proofprofile.net/proofs/artist/a544e874-5f66-4bed-8b66-838031432900.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 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 0xe2e5895e5e83417e0bc2e0727d716a7b2ab22a92f0444483969107245f68a48b. 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/US39N2205466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd172285871129449e782d8dd12ec6303069ab20c56aa97443f8bd4540a2dcaa8. 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/GX3Q92094304.
dopesmoke (67) x Fumez The Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae5c7e722b08f8a27aafa7742e1c314835cf84808a24eb0c54964e3b60bb068. 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/SE5BU2446771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd173e105a75f4167ca5636d93ad618d09548bd50e01653c107f18f44afbd0705. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USZXT2453927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1875f713e1219a506217264b1894f04fe8af36e5ce4664d5e335bdb1181bb9b4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX3Q92462749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69745a1d32e02bda4209cb78d5fde68306b49954f4e6b029a7f7131424955571. 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/GBLFP2443235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef42fc79b611db632eeb59b5a708ed5088c923655a3a801a57dfca4c0ef0547e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBMA22304929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a77c50ffa32ccac43112f88291d714553be5570c07a7795b046633d4314061. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKXN22375765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1983b0ff04ee7a4ad29c38073224bcadf7eabf865132b1cbc2fc1e3868a9154. 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/UKXN22324173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ef44b6f4db00a3081114ab3b4e4e4824e4d4d42a4ec98a670941f9271cefb5. 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/GBLFP2390526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc537f80c2894c5bb8b766217f085bfb782ee42baa77d7b46d66b36f27a4301b3. 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/TCAHE2381522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85f8adac44cab8c91f51d286aa1e5ab3b494ec26d82da73fa8ea15ed084bfe0. 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/GX3Q92098352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8874936a0796ea6af78d02339421fe7fa5afc8d7afed547e38e53ae7f7dc1b41. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB2GX2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69333bfb6467fd3683bff76f6cc148ca349ad8d1d848b7c6d87fe277e2797443. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLFP2220756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18580bf59214fea01d535f8e8e173d15aeba7483790d7fd3073b40be6e04803b. 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/GX3Q92018918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e227b030c1e228b9a5b5e5394a80df7f5641cf83e593cdcd902f92651675b6a. 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/GBLFP2134040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30610b25aa0990d15195d0bdc36cafe19b20d5fd075089d8830b961cc950d8c1. 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/UKXN21998524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0563a223e6fd3863e9d5cd246bebf01bd8da09b45fbf607f9199d1f95b452291. 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/QM6MZ2488121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbafa90a3f4573e54ffb33cdf4e836a26151d8829152dffea0f8708fbbb24b69. 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/FRX762160995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd172285871129449e782d8dd12ec6303069ab20c56aa97443f8bd4540a2dcaa8. 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/GX3Q92094304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b6806f7ec9fb282b0c478d50e739c571bee5dc6c232893f5a4f01e27ee8fbe. 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/QT4K52504055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c47459f347f69c0372f95a949f0244dcccc2d7be47c797e02efda837ed6d21. 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/GBMA22590699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6973e1900d9986d37bbdcf04dde1dcd10fa719385b6528023f54357a5813d25a. 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/GBLFP2595138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a07d0a73e72164b83026815ccff5b6ae1427810ee4cc6b070246964141d1350. 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/UKXN22532356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac6e449f8869711d7e39a77be08a4f347555e710bef52ca8a0f4b7575b3ebf9. 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/GXF9Q2504237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27ab4367aafc32219f9be937ce187bff964cfcad71048677d78f1b1308177cc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBMA22376505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a57d9b2e9be122ea5b8e4324f76619926032d418d068ea707e3cd41b068ba99. 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/GBMA22444556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85f8adac44cab8c91f51d286aa1e5ab3b494ec26d82da73fa8ea15ed084bfe0. 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/GX3Q92098352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906a7c1e6a9c72e847e510f84396bd844311dc0e116949e6cc6831f479777323. 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/GBLFP2040530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc721a126e31e9ff6a3cefe10714ecd4eaf66874f58cc282a2f873891405310cf. 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/USUM72401623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046bd83b055f68b70d971e1e7c3d0c3238c43e6ba88096d6a2139d656c24f7a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRPZ92449040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe49b89fee88ec4c1f3b73e1d31169c1196fa81e1edd88f3b75f68e5cc9de48b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USC4R2445163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169e1bb1766f94e06baede42365d69690a4afae10de35d854c485d032ea61d85. 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/QZTBB2408622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf420e2fd0c4f9cf01cd161bbea427d07216ec1c2b31ff1782739bec43ed3a698. 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/SGB502511514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087e59dcbe7800fc92fd7d902f67d9ba7183edcfe5a4830b0e395fb7fdc0161c. 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/QZHN42170305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5756955a1c44a2c45077f9d585698a7153ebbeb4115e1edcf479412ec2f0c519. 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/QZHN42170310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7211f597c116c2c896294b33abbae0a045e18b011bb679263d1a61d5bca9b2. 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/GX53U2400152.