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 0x389229fd232e55e0f6536695f661640048d6700e06071fd6693a350ad2124548. 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/b381e26c-ba2e-4db5-a252-dd695690f9d2.json and https://artists.proofprofile.net/proofs/artist/b381e26c-ba2e-4db5-a252-dd695690f9d2.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 0xa1c466e09d56886724df5ab8f1c856df00476a9115e31eca6b5546ab8bccaa09. 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/QZK6M2247301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04083b529334fa68354c78b888fa878a58aac504689289d2980319711292bcb4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZMER2254129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6757d657b6580ee7951950fe91f25e00bfa49f77b09f0879698b96eee00de2. 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/QZMHN2333163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd387dad647edb0bac82b75753fa45b089dfcb9ed748a9763dd882d13d424bd22. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZMHM2392416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e32b0681e76c1ac7318677c4ca46e3e6235ad151cffb5a46c7e1a8d780ccd1d. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:39:04Z), 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/QZFP52305597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c50b7acb0bff05684f45a9cdf872215a799f3f52c6601b288c6aa7d1f9ebbb5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZS642289447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bd31214cd060835818a2f64eaf2be7d4997269fa730ccbbe4a26073cedf235. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2445995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9564e546c3e6c3a1261e035d875cc206e3547757133755d42afa318c5a9002. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:37:59Z), 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/QZS652239425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e239677f9ccc884a4cf4da0db0fb4473b50c114487a3c4301272db45290deeb. 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/QZMHL2413044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12665a4ab8990d7525d18a545b9a5bc599de49e6f4a33a411e383b5c03a9962d. 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/QZMHL2497927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763a3778db03d8683ad91dc95bc3e3827c7566333f8279fa31cdf65652737db3. 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/QZMHK2473419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1073877e896089c253b12f3d7e61d96b605b78fb3c91dbd64e34fe028bc0b8d0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6J2492212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1906a435b0b1d57c61d6b5d83d9d5545b46085f60d29d763849dae0c61aca7fd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWS2462742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429cfebce894e136b0716b065a086a49b748e276077357535ec0466dbdef5a49. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:56:54Z), 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/QZNWU2412003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57ce6feb412a85c3280fcf5976310c334dd4f80c8d731be44a0d31c822d0955. 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/QZNWU2412005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94163d8a775b781a9ee0af07e9ab7c61143ac8de155f33605cb6a3812ff3ccb. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZTB62472103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d786ad715e3b5148010e6621a859cea58c871aaed8bdcfa6d218874aed6cd1. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:51Z), 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/QZWFE2444026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209a3d4f4a07e8200e5a1ab407f9e23c378ab4d9228efe8afa3d7a6af8373761. 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/QZS662464239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d05f6e59bf79cfdee1d23beaccbe7d599694bdc36d11e5b046311d28222f738. 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/QM42K2419621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e463a685925c7319f77f8f7ecfb23e7acbc9b3d92629a6c838d33ee4cf0c78e. 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/QZH5E2475734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdf951d44de7f1f1067e3d270c7050a973539b64d60e5085c1843eb75a06534. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:57:23Z), 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/QZH5E2470444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5668c84c356f25babfccf14abc6194461e0df5538af7323b8c03e4f0c3026ab6. 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/QM8DG2502864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ba3c0202aa61582b808f81b17bf9838cda00d7192563fc73a00f413b038e34. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QM8DG2513907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71257ef1e24b8eaf08652968889f2ea7399b4305be952ad69602377c4458aae8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM8DG2513908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf333c33cc1884b7c627b9f5fdae00481893710e9169a3b936ce61e32ca19033d. 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/QM8DG2513909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fc62fc86cdc4b5332097e483abbc0e3eecdc81c1293b53bb9f5d32b4245bc7. 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/QM8DG2517421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ba8389818e9f8c72e6d31e82e44a70ad8f462e0a2fa6a752c1abfe95974772. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QM8DG2521318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f1e965abe5875275cb33699b1a3c7f31aaf565a7d8e2005b897274ff1d3dbc. 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/QM8DG2523887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe0678d1f893a8135e4b8b44fbbb5373e05dfd17e9cf1ba71532fdc8be38f11. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:39:48Z), 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/QM8DG2525814.
empty my guts for you, crawl into my chest cavity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eb7cf6d149ded82dda9d867859648d12efb93f8a4f49a8044da44471655fc4. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM8DG2529746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea5462bc128017b5181f80fbe2b2a1289fed5384c4dce66bce2d344baa0b64b. 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/QM8DG2530654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64218037a2ee206f6291075b38f673aaa5da262dadaba0c096880b63e5a0ca8e. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QM8DG2530655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa73f8f834357f18f8d4d554336057cfbebd189fb7058a5544de0c0da908765. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QM8DG2533342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb729655b2ea09a2ced1c4ff78ec63a7f11395cc6bee743b8fe2dee7eafb3aec. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZNWX2597340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611df69cf6f985ed6ab51a6dd4b37b05bb1e6aae3bb7243d45fb73c664bdd886. 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/QZWFL2506424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d309383ef11ed26e27819f25e554359371a0c043adec0d5350374ed44f209c. 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/QZZ792549237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b83664b859de89f159fa1382d69edfcdbcbeae5641f2a42c8e1e1cce354266. 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/QZNWY2158632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a613d8d0cc833a63f6f66ffa0b4d1d289afeba5155883314e5c553998e2d2f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZFZ42407295.
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 0xe3ebddd274affd09b4a62f330bd03e900bc87975524acca73878d53ca93b278c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/SE5752386588.