1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5adf75c3e61a3c5d25d04cec48d4812e565e868318ed56e1e34764ebac20e6b8. 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/3329a062-18af-4d61-8119-c93f9ec59da7.json and https://artists.proofprofile.net/proofs/artist/3329a062-18af-4d61-8119-c93f9ec59da7.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 → block OTSBitcoinBlock must exist at that height 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 0x9c7cdfd83e11ab0aaec805aeb5c3b260a83a847369bb5ddf4e2ed9043713eeaa. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QM24S1838447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6362951390be421e04dfbdc0dc23ce6672e1871209005f5e3a0a68aeac6342. 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/QM24S1838448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927abcc58c4d7a2510b3e352bbda89ba4e79b6e0af2abb9b5c89a705f457fc8c. 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/QM24S1838449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aa2efb052d21bfcc153cc6a2db498d037586e9d5047c267510e256f87f5a11. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:45:54Z), 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/QM24S1900323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826306f1c7ddd4b892743951088c2e0c010f9816592e2f093e0af9a2c74a43f7. 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/NL1LE2000441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69bab8a47ab759de9befeddf10c5eea7c49e489899365e3783586f27d2dfee1. 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/NL1LE2102262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7052473dafbde790b3a2bec3fdd886db9303672102abc86b2aa225340393d9. 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/NL1LE2102263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d1f9e15faf13b05f1752c362f42a15f8ed52c85618b9da100c71c981047242. 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/NL1LE2102264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd7552baaf1189c04bf289a86a3259bc0efbcadd57ae7fd27251022d54f91d8. 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/NL1LE2102265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0d2dd2c23f8b7dbd8105adc2dd35e43b4a9da39651c881ed969745b6a61ddc. 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/NL1LE2102266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d152c473becda6e8d7ece854755ddb8c6139522d8c3be3b62dc9798d4c6a10. 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/NL1LE2102473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eadd9006335a8b08702a9d22a7934e8525cd2776e0b0897bc46cc6e017d3ea5. 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/NL1LE2202640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064071e2f8c0b7fd35bc8c31699e5f3245059cc6812a09fbf5114b898d7e66c5. 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/NL1LE2202645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d6eb358bb989ff416824ccfc7bf549867b80a78581ef068771a850c36d6f99. 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/NL1LE2202647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2ff9aa73ea6e57c7d268f8d5fdfe2d3b2bacefbe09250c9d678bed6d305605. 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/GBKQU1916721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2609c88247f08cb8dbab55ba223ed8f54f1581a9de71209291d7688e2d932a5. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/NL1LE2001500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59460534a17380d38501721799828cb672a216cd55ea6640ae620659c9ad6ef. 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/NL1LE2001290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d9e41757c60a337464d28dced39089195fc4567d344fcaab6a56ba323ae271. 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/NL1LE2001288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c4656115235fca8916dbad9b50572a0c861037a5079569fcfa761810772e7a. 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/NL1LE2001699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf49107675def5e2f9be427d4a55fcf4e5555814f06ecc752c9cb331af4dbbe. 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/NL1LE2202582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231066b0fce72ab9fccaca3d557607c6dad86610459587d26c34c41c3e2763ed. 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/GBLV61808244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa779a0efa87064c00e7a09c539ce595f3ae48a4ddc829b08b963d46c95a085a5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU1979360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826306f1c7ddd4b892743951088c2e0c010f9816592e2f093e0af9a2c74a43f7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NL1LE2000441.
Sounds of Slumber - Melodies to Help Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc479639777defc6abc06ab3d6c1bd89aa2f793630b614b1c55b8851348bc55bf. 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/QZWV32434821.