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 0x73811aa5d232330ab809450522c09159e245b4ca92c80696d81fc6dfb5d76630. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM9AA2004491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8ee0c61029a61cc87e2e8ebce57c3519311d94fb334eef0a32877592fe7662. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QM9AA2004493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82657ba8c5a136ee8aa93e192cb653e1e79c2a12bf9a311ea3f804038a218d75. 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/QM9AA2004496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645dde03aca4185125576a442af4c1ac4f5c0f4e12ba1924fd8a4be630e24cea. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QM9AA2004497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49c26939c14fe3b962e656dd0200de1d7df7c61ff20901ac3818694804d8cf7. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM9AA2004501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169d4494faf11e57f60d0d852cec4d314cfeccdc8b1a0f642501113e442f50cf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM9AA2004503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438957137634ce8e8e7b76e2ae8bb565482c04228fe3b2afa9f7df215f58f796. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QM9AA2004505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae51b21f2dcd80ab45a0934d81798a49fb8b8bea423db47018bec23dce22320. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QM9AA2004506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdccec7e6d5c89f3358d393d9de10d8d5cff7e471276ca9991169c0ae1ebce0. 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/QZPAR2100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97be5ecb6ab954d061e5dcefd8f5b6a0c7a2a6752ac1996010f55392c2d3e2f. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZPAR2100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1c413ed80ed0b8d7f5f8bf55f464d9d586c7aaf85e041f2c4d51ca65d41ca7. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZPAR2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7672c7211e0515aefb6a8d2bbb1ff167c60d485461d369e02748303c2f02dd6b. 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/QZPAR2100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d41fd4abdbaa4219f42477a6a1ea52877025c9f4f25a69913b71e5d0e407ca. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZPAR2100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddc026e29c83c3b16886e03eedf90d6ba7340413c556934b3f88307f1aece07. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZPAR2100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb25a13839d94ebc7ae0609a1b5fd4df95be14c2ad0ebefc71ae991d6e375a43. 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/QZPAR2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb377c19e454b7e9176ec3896ac4b5cf5720277d41493d2641595bbc21469e7c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZPAR2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36296be0b3a2437fe86f9e6959294a8ee38065a8c91879504945c66b508887d. 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/QZPAR2100057.
Long Time Traveller - Swing Low Sail High
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caeb25cad86b82329efceddc93d57587322e9ef4f3bc4821230d247cd9da789. 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/QZPAR2100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cd173baff6a92860742c49466b1a5fbf19f2d66c996de4e79e47f2b4b76ff4. 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/QZPAR2100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcdcd3a4121b7207c3039ffb85288719a93403d6aab76a0ff7fcc0b0ff97b36. 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/QZPAR2100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492e2966e56741bc419e3d17bb83de2ea2f4c7d69ccfe589f2c73e61c69815d. 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/QZPAR2100064.
Hallelujah, From Christ on the Mount of Olives - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6aefb6ec8e7f2d0bc1e2d5df35c0eed93e2a98a408a733b18f71e4419ab0a5. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/USHM22156937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3813095108b1f40fcd7d2ce3085472e27f14891bfae21b6a2b1c40ab469dd5. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USHM22156939.
Concert Tour 2018 Poland, Czech Republic, Slovakia
Corona Del Mar High School Madrigal Singers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7222fd0729356e57a31923a6a1de99db9bc8705d9e71a56db7f258bdd5d3f1b1. 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/QM9AA1868184.