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 0x7a119254e4002b3d954b7efa741eff70dfb8ab42a6bc03c647d010a891da6985. 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/a528cea0-6fff-4638-9c19-d4a4e89981e9.json and https://artists.proofprofile.net/proofs/artist/a528cea0-6fff-4638-9c19-d4a4e89981e9.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 0xe872a2133de3aa6de0e7f90d0ada3c1d80c43666eea920deff0be9c5f28f0757. 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/USCCW0910102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bede9154dac9cde76dbc620cb381fb28eb88857acf4d3c2d8146b26dd4ae394. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCCW0910104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad799b18ff7640970dcfcc47a51ceee9167b8c0dae3f4cda7dab6cd970577de5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCCW0910105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9e47a6281754d337be41e634fade2a8f1051a05568cef7295b60fe0c53aaef. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCCW0910107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ca32d4401742b9cdef1ef51f5acac2c7fb98a03c7805545667f08dd6a11bf0. 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/USCCW0910109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8edd7df6a709bc95b80534ecf5f2fd592fd57f072a3e69df3788bf41cdf4b16. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCCW0910111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae5a4f6ecd933d16d0889be662b8d14c02b7b9366794befbbd135ec84051d7. 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/USCCW0910112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362a88779b3f9f158657bd5ce128fc1d7c5da2b34c09719ceec7fb0e7d05c497. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:43Z), 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/USCCW1210162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07c89cc992141f51ac19925ee99aa7ca68fe13d1e46a8d1be083968c26a71cf. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USCCW1210164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf51bc891fce2ec7e5554ad51b7b7da2f18e96385188547bd09e263c20e3fd3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:27Z), 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/USCCW1210165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3160d83a7eadbeee0cbdd1f38a683c67b6b7680cd7637b89652f25bd48ca9797. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:00Z), 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/USCCW1210166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc495cacbed9e86e822afa2f1189a152490eb5a1315d08a88c625b7b005d19dce. 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/USCCW1210167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde1b2c8f7a2bcac06c4150ee9618ed0753dfcf5af0945225ebe086bf71fff62. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USCCW1210168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8381dc133f8fc99997fb6febc80c1789f0a3b379d994f30da1d1cf1bc738fd2f. 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/USCCW1210169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa697c560e42ff897a0ef66edf9b25014e79d830c4f29e2578151255ae0c4f19a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCCW1210159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f9f58a6e3fc99ce406edeeb8c2b9617c1b3efdbdaec0f7f3dd88f84494bf18. 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/USCCW1210161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ade323d6ae1acaee27bcdee49d9a94fb98ad2f32be26d4c7b337ba965d92dde. 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/USCCW1310336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af01ad909d94cdf0246c3f5ad192f03b5d981812e72b4bab4054775a25bfcc6. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:23:54Z), 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/USCCW1310337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb00e3db89f6082d736c8c02cbf643e4717c2961f01c0ab6fa0225481b749f0. 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/USCCW1610649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67a24888b0796c7625a767add10d12fb4a64bf14fccd192b40f2aabe22f158d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCCW1610683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc391aed254b90efdbce457507f868a8b6609494f6db7d3d112a0975f570dc0ec. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:23:02Z), 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/USCCW1610685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3230f15db6cdec43bb2c80b7a872c843044bcc9e93448640c6bb735406421487. 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/USCCW1610687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8280baf3b716988769cdc64b58171701b52952598d2f6754294f894ba52cf239. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USCCW1610689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eb76816c8b4ebc1a2f548fe5016b6ed5334611e14c6f766d7e05f81c04b56f. 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/USCCW1610691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7a64c3592ef4bda8baecacf820a76727394c66001e3b261a3ff422e104efed. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USCCW1610680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2864f316b818bc13ead50a582a9820d0b7339eb74a9cfc4109d30b1b37bdecb6. 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/USCCW1611149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330be93a4400957f42acfc5a26eb2ea23c8c52d0ebfbfd85d0ebd9311556de0c. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USCCW1611150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f0e46d518c76f50d6b0e83803d67afa31ac0e326d366650ecc575ac77b5ae1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:16:11Z), 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/USCCW1611153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7136c35ffb80191c1b2aa4b064c6b953464666635a848c5a9c0a3a510f11bc. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USCCW1611158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1da8b8e71f9e420e15d0c070115f7d444bef5cb0b62414735ebcbb9f972959d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2149253.
Do You Do You? - Chancha via Circuito Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb31931b3630a1dda589bae63b16240e476eab8a81b32af52c57f4a037bab5cd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USCCW1610907.
Inmortales (Body Move) - The Spy from Cairo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e2021a7ec19ea2dd81a1ca96d486a69a5b13a53bf49f9c70e7a3d3e5613d6d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCCW1610908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a2709947cbd134d7a7b4642065341ebb7bb7e06cbe3cf7545c867ccc640d11. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCCW1610917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9e47a6281754d337be41e634fade2a8f1051a05568cef7295b60fe0c53aaef. 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/USCCW0910107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4be2bd90ffae4dab5ac55cb7a94923e4c8596a02e9f60a912f45bc332eedaa. 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/USCCW1610618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5703a60dfbac2f68a010e4878ec0c950a3f6414babc317c13d4cd220d3bd8080. 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/US83Z1914872.
Chill Yoga Music 2: Power Asanas Dub & Reggae Beats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e197bd0e5d318dc95f2d2bee1ea2b510e2a29acb6fb293830364bdd0a7e346. 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/USWS41918618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ed24361ec4a8b11d7c4bb5b4e284e17e5d74e2e6b2f9131c073d5541016216. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USCCW1610582.
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
Ch'usay - Nickodemus & The Spy From Cairo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cff7f89164156f4f72ccb05e147cf850de97a71381a8295656deb4e6d2f30a7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USCCW1610934.