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 0xb6edf635640c8f2e65597c2305f695676b50a43f567c0a6cd027e05487b58c96. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b99738d-0f8f-4393-a75a-475679a0551e.json and https://artists.proofprofile.net/proofs/artist/1b99738d-0f8f-4393-a75a-475679a0551e.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 0x647041b158c314a9cee1db8ce76031ef1cac746e064c78da80b68e2f79ac0c52. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:02:37Z), 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/QZRP52345021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8b1758556b7b07cbd311b5be67568b9d13abd807b921687bf75f5148f7bd80. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:43:30Z), 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/QZRP52345023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c5b2df4e0a75b6133c3433c59d279e013b7db2968eb7494afcacf1f2c6dc39. 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/QZRP52345024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6225cb85f30c84d4a336abaa8761383500a970aa1e017303ecbc04057e64506e. 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/QZRP52345026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce04d1f0034aca87a328687fb6c47945df2923431bd20f166b63c6ccac3507c2. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZRP52345028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e57e2e4a453a7751aaf8f217ce61bcb5302b4ad93d821ef126141c27fed65c. 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/QZRP52354057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37156a0edb0b0d5c01592ed888f941cb9593551281c99fda74f3859f639eadfe. 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/QZNWQ2514062.
The Heart Of The Universe Is Filled With Wyrms
The Drum, The Broom, and The Horn Of Approaching Dread
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb302a6e2f8d07967650ac6cdaf34974aa28d72c8cd1201020417e44896798706. 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/QZNWQ2519668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44b8b0457138c0e7c7c3eb3b8f5f8fa6c4419aec7e034e847498abf4f7b5770. 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/QZNWQ2523571.
Jazzathoth Or The Universe Has An Outer Skin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e66f9ac0c460e54c755af4fbefc473942a1ba0b701fb27ec7f31773dc60831. 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/QZTB42546055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893e8a0b5f6cc3dc20d99c8784dc65e5e23e39b1591620dc7850f25283e1e44c. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZNWQ2525787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dae8cd615b31be5f5d33eb43f8ba2539be755bf3b82ce73baf722e38e3cb601. 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/QZNWQ2527959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacce74675b5b032aa583fdeb32fbb26999f74983100a1b9bd702d03a12ef275. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:52:55Z), 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/QZNWQ2530026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1febb72bf6b13b8fea41613529cdcb2320fc63d7f2f218574e4464542d30527a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZNWQ2530028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce4eaa95981501c538821a0c598f245147272c3ace70ae292838ec529dc2e91. 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/QZNWQ2530044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c842d995175a542831d94bbc5b91fb44401d7294f53cf979fedc4b062a852c. 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/QZNWQ2530045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8247521cc189f4a8b975e8e7d13f075b7ed1589db3bb5a00dcbafd0cbf21d32f. 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/QZNWQ2530048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6be17c3246afbd407e8149996217cdaa3151fca9e387aae21d1afdb63a91ef. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:42:50Z), 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/QZNWQ2532275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f49f81c450690cd4692cadeb3bba478d27c736f425025b4ab931a6c804ad1ec. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:59:14Z), 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/QZZ7W2570524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c1aec68aad73af4f0d681eac8feae78e8c8e31950478bde64b942d7c0a8c9a. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ7X2508583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd42b8dcbba00f9236fd8f4a552277209ee68140e81a2c6ca18c29694d467290. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZZ7X2505943.