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 0x1ac78381cd609b7d078c81c75e267a1413612c3ed3cfcc9fa950d20791f7ec19. 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/9bd3465e-3f42-49a1-b0a5-d62afd143675.json and https://artists.proofprofile.net/proofs/artist/9bd3465e-3f42-49a1-b0a5-d62afd143675.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Meditation by the Fire: Ballad of Fire's Serenity
Sleep with the Sound of Rain: Relaxing Rainfall Melodies
Water's Peaceful Embrace: Soothing Soundscape
Soft Rhythms: Relaxation Music Soundscape
Massage Music Serenity: Touch Inspired Melodies
Calm Interludes: Music for Restful Breaks
Tranquil Lullabies: Music for Baby Sleep Serenity
Soothing Relaxation: Thunder's Embrace Enhanced by Chilled Rain
Mindful Stillness: Music for Deep Meditation
Piano Music: Dogs Joyful Melodic Spirits
Music for Canine Serenity: Waterside Harmony
Harmonic Work Sanctuary: Meditation Music
Dreamland Odyssey: Music for Profound Sleep
Natural Harmony: Music for Massage and Spa Sanctuary
Serene Comfort: Ambient Music Baby Sanctuary
Twilight Tunes for Baby Sleep: A Celestial Journey into Slumber
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 0x1ca766e60ca3e78fdcf1b53cf3ea9536621f5c428eb3e959e85ca545d1e8c31d. 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/QZTB22259271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1639507aec0258258a9b6073296f788b377dd71b7a64cb36280b1b314ff360. 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/QZPLS2249671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cffb696f5b425abf9718fc79bd66902e0a0fcf421c3aa0e53b8721d8f3806e3. 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/QZPLS2249674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188b4899860fafb53ccb44b9ec1c01bfe1b3b3fffcfc286f4871380159a68d68. 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/QZPLS2249675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ec134e1006f5c55ca8da90dae49530b7bc54ad43c830eecb638f5a35c9a8cc. 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/QZPLS2249678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f85248652871ab56ab0b600ec4e105c5bc9acb47f8ee53261decd19bd5e98dd. 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/QZPLS2249680.
Rumbling Nightstorms (Recorded From Indoors)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfad770d7b489151fda625b603d664a8249567dc23c84eea602ba39d08a61714. 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/QZNWV2234152.
Heavy Indoor Rain (with Distant Thunder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acda3943ba1c839a2262fe697cf7c369e7147c9175fd113631b8d3f3a4a5e9b. 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/QZNWV2234155.
Birds Singing in a Storm (Recorded From Indoors)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1623341905527d08e845dc79ded550ccd3e1fed50fdc71eef05252959861615. 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/QZNWV2234156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74eb0c56f5daae92784bd395bd4939871cafaff010edb765acb25f4c7ef89f3c. 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/QZNWV2234158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a9f41386a3fbbc4282abea669560a7f9939d967b2abdb424ad635e65869dab. 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/QZNWV2234160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c99a364534f7224e9e155aec3e0bd71213481ede22bf683780b62f85479d43a. 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/QZNWT2213307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a60cb77826d6de7f89bc1791ea5919bf9f4d89c30c0f7817b657668423b38bb. 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/QZNWT2213308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6725fd95f791d5a8530e5bb819ca602d7d2cfcdf39e991c6c1c3d588248092b8. 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/QZNWT2213309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08019eebea35de2a8833b3b6c43a65df7dcfc9985fc13be4609fb4ad51a394b4. 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/QZNWT2213311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405a10d0642fdc103ec2c3724a477db978e2ecc2e40a96a7282ddac56e13541c. 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/QZNWT2213312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2d8d7c32f7e06de0f37b15bbbf138ce2d6a3419bf440332221573398ec7208. 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/QZNWT2213313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0899f67cbdad409234ef7cf9af264095fedd25fe83e3c6634747b401454258ac. 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/QZNWT2213314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddd85b3aea1a053bd1f1d61bd80ecd7a9e464c871d93a77aaa8e3460237e41f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZNWT2213315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa0d7f8a3b9959bb819996ca08daefc7bdafe1e3bab913a0be0881859ac0b5e. 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/QZNWT2213316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32051a9bf7b3b0e8f1112690919e7e41abb1515ba462e368d29b18fad712609. 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/QZK6F2217936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022b2ee6b8bbc54aae32c2c4350a391a2b8685713ee5364cbe50fe78ce116ef5. 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/QZK6F2217937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b7d6a016dbfb130fd06fc179e6a1b5b7d7af52f9f7555b16b65d95b2006e68. 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/QZK6F2217938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2324469791174d949ba01a9044b0b85802ec4e50f41e3292dd429f6ac97e1cb7. 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/QZK6F2217939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93903791c21605d756a547284c45f55474e9237415930fe24b9dd988d9d5662e. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZK6F2217941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d8868a3bc6dacd3ef60212f05627a6111e8b92ab9f1b43f53321214df9c824. 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/QZK6F2217942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dd62df195d202f7665b6e77ac85651b459f874a10ed5bb4ad9f1741dee69e1. 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/QZK6F2217943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082c0bd16b296271db6f4c82513e7ec339b0d0708a3f156619d56328ba668d3a. 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/QZK6F2217944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaa8dfe6886ca4ff79dca25a1c8e5780501612a04600d9c8ba561c775453881. 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/QZK6F2217945.