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 0x8744c8341dea19a15c77c69c76282033b88a0c8408a33b89507e14cb1a398009. 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/e4881dc9-c91b-49ed-aa54-bec94e0c3758.json and https://artists.proofprofile.net/proofs/artist/e4881dc9-c91b-49ed-aa54-bec94e0c3758.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 0xbe36be76e4460af780f81420f29bce65bdc282359528012ddf24b9234a761c13. 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/QZK6M2083756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acf083616d6450c296465634f3322b5c3330635483444857ce703196f445b44. Chain 2 (Bitcoin): anchored in block 957826 (2026-07-13T08:56:09Z), 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/QZHNC2041580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf968aac3e6fbf6c48ea2c0c7771fddf77bd87bbc40c76f65c148cef562391d3. 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/QZK6L2074477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1457c5e0d1cb7e89814bd2990027296639d5bbab3061f7a8886c61133329d6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USY282008802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42daeb64699e488cbb9cec5c44db5f2a7d541c32edce966e6812b6d4fb1fc08f. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USCGJ2111570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9c66f32d1944dc100ba7fa407b43128c500981aae834c93ae31a2513c00182. 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/USCGJ2164871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3025705872c3d41fb2800a61343f061f3e6a87faef54092bdc91403f72a1fe9f. 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/USHM82149836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed6baa04f332a4dbc25867736cea9acb8da3b2c82bb48ca8f5b9e29022fa3ab. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USHM82149837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec8e01ea8128435af7c73470ed2442ca1e3ba85163a12f41ad10c980e57511a. 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/USHM82149838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dd9ba5141e671baf72a26014598c9470baeaa3a276496b0e7dc8f12b5b101d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USHM82149839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590996e138f70f33f5bee054f95e897afc64b4070f735d7007cda1536e1f1e8e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USHM82149840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fac30e01cfea855001419022059d4eb8c8912ce72c88129a8121f8451d54906. Chain 2 (Bitcoin): anchored in block 957826 (2026-07-13T08:56:09Z), 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/USHM82149841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e670fc33b44de1f8c7edf0549c99951a930172ff699bba26c1e2014bfea47e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USHM82149842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf26e7bd6c32f08b5f8203db56fa0260f89b546540ed0dba122e8ef6e1cac57. 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/USL4Q2158259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9930fae5dc45615b857b5231935bd19c17841c41ac967637ffe9b244973b91. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USDY42248607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32072775f91bd1cf8cad670dccecf1676d9414f12663607c401b39f8a9ca26c5. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SE5IB2299225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaa97b0cff98f86fc31a4c924e85e997ecf33775b64fcb0317887463d33a234. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:51:58Z), 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/SE5IB2299226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc921819bce5f8692cdb012d31fc65398c56ba9d7c07c873037f0e84cc950a49e. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/SE5IB2300938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf633d77957b35f0b95a57d9516aa4da07234cf03ff348c2e4dabfb309accb85d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/SE5IB2306995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4cd89b6c46ec8d1af94d366a12bd264a0dc04419501aaca8b56552a9ee826a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USCGH2488100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975e283007d943d3f11cc715bfd88561799d0899dfb337c54a1fa051515cdffe. 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/QZP7F2578687.
Healing Divine Chakra Deep Mountain Flute Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3028695365a2eefefe58ebb218a9e4433cf0c948a3f1f5824d32aec8daed66b6. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZP7F2583236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51da0e9eb47359de990c63adbb02741dca22cfe8667b4748547d14d0a755164. 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/SE5IB2294986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a696eaea3b90b9b1e9b7343105bef3d082f2094e3b36c1453f7115c91c4db5d. 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/SE5IB2294929.
Zen Meditation Music for Sleep and Relaxation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36f5132ba6a3b94f192a886c1287bbe5eefc288daec384453e8619256cb6afd. 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/QZP7F2540033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c1dcc7571e32abb97ccb0939de9c3463bc6888238d4fdb042553b358d42381. 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/QZP7F2540034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6021dbb8aa7f17f48d72dc20330e74eb1573eb61d203cce70d1561be97fa1b. 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/QZP7F2540035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b37dfd7820f97bcaeac66eec18403cdd967f78a2549c7a593a79b4a055db7c5. 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/QZP7F2540036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3341e0f2ad7e603210551c0c526e3338ec86035b77114aff1c689ae8bd3b2e90. 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/QZP7F2540037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c35bed551289502221ed8f5d4d13bdf1bcd524bdcd073d6e54d2ac80e428394. 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/QZP7F2540038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0286d854893c988bd858a7ada5e73ca0c4dbf184a8e88a8e9c710edc6ddda457. 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/QZP7F2540039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b73d98860cd2fc47bc9222847b30fb223d15301cfde63acc3fc0408557408a. 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/QZP7F2540040.