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 0x48295256706c2fb7382d969aab148986a48caf698cdd9ab508720d9e62ac3351. 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/640f33fb-9a6d-43f3-9852-ffbe8f201fd4.json and https://artists.proofprofile.net/proofs/artist/640f33fb-9a6d-43f3-9852-ffbe8f201fd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Friday Night Funkin': v.s Mara (Game SoundTrack)
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 0xceb4b8cc52e00d262c3be0295e740642b31ee5c40951bec60680f7ccedb2e428. 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/QZWFU2406794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2410ad920c4690c2e1755e925ff8fbeadb179da5d5cd474e1be4ad36906bb0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZWFS2473462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afb80bc47abc50674bd38e44ad02e9d377b7255b40175deba1f3d5ee848835c. 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/QZWFN2452524.
N's Optimized Demise (Murder Drones Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fe692d1d27c6de672183d3fda0504fa4f9becd2c51ce568e0e6a63b4705a9f. 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/QZK6Q2313447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb4f56feb781722257d9af7914e4d1a12350eea190a07af09bfb5530fccc96e. 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/QZTB22338312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4b046e2f8c058ff4c6dd585a0a22cce3437b15cd60d791b4a8348fe53ac7ce. 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/QZTB92415339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94b656dd338478a23dab7e0cfd61ab01b072b60517c0674137fd09c192e668c. 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/QZTB92417399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4b046e2f8c058ff4c6dd585a0a22cce3437b15cd60d791b4a8348fe53ac7ce. 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/QZTB92415339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefa4f83b34e789da96cc84ffad019ed823af95a2646e344742143dee9f610aa. 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/QZTB42444025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294c64b17d84f7100fdbfd26ed870513bb4da635caadd9b6b1e9ba121fd38460. 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/QZRP42427144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf022790fb9d5f85d234f7c7d51278a13a258327a71119d1d4fb68eaaa92eb455. 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/QZRP52496651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b65306a0997f447fa4de15f116c2fa9e9eaab55abffaf3408b50477caf8f7a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZRP52496652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294c64b17d84f7100fdbfd26ed870513bb4da635caadd9b6b1e9ba121fd38460. 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/QZRP42427144.
Farewell (The Amazing Digital Circus Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf0861487a6e884265c8417ca422785cc4f9e356ae70beeaa5e4ce311eef411. 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/QZMEP2494389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839cc345fd474d4065e2cc088f2cb895dcd06491c1c810c1c468d6167f304f22. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZPJ32364699.
King Of All Seeing Eyes (The Amazing Digital Circus Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857693a1d4e49d936ae07ec0cb36550cd9d455b06735bc3609ffd82f593daa3b. 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/QZK6G2438179.
We're Gonna Make It (Content Warning Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fe8dd548c1ba801a3609c5cfdd0db8f20af8f0ac481978c55f4a6595037882. 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/QZK6L2403251.
We're Gonna Make It - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bc921bf44c2777fa9e5f2dfd4c3c3235afc0a4e8cc4eaaff25feaedc6efbef. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QZK6L2403252.
Standing In The Fire (Murder Drones Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636442767b05daec0ee7eb701d97f4931f558373225c7f2cec1b057b5ea7b1ba. 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/QZHNC2472417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11587d5ad722d22a0b57dd3f0c3a88039f3c1de9427704fd6fb6ed2925d422db. 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/QZHN72476975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed9adcb44808a13bf7e0e632fa4bfb24b125aca9d79d7d083fec7813018ad4b. 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/QZHN62461001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec51939b1bca211fcf932e2e60c7fe3040e3d2f89105de6b64fca9e794fe4bf4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZES72416537.
What Makes You Special? (FNAF Help Wanted 2 Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61ed7162a9e1b55b86d6a6888ce0a2eb283cee070ae18bb65733df30b0718f5. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZFZ32421794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0152089b5e22f89bef2b1123aee7340272279202ae6eeefb6c8eda2b4f2af7ba. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZWFL2320302.
Fake It (The Amazing Digital Circus Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbd4df5bfe9832345b1ac2f63099ecbe62b245785e285cb7509d73ff1f37541. 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/QZTBF2307830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8edb77261b0da507464365223e8141c51a5d607c72951702f53faad972e6144. 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/QZTBB2365918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb4f56feb781722257d9af7914e4d1a12350eea190a07af09bfb5530fccc96e. 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/QZTB22338312.
Lights Out (Five Nights At Freddy's Ruin Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad61936b44af21a5160fe291b89043eeeb66df2a68891b8f2093419ebcdcf3e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZTAW2368798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa203de6ec8a483e8afc6cbee28fddd8e53977db2eba57c6922d170f7eddecbad. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZPLS2319953.
Down Below (Five Nights At Freddy's Ruin Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e16b80156d1d2d4d420eab750b6d2a069b98bb1c0a458052ecc30cb727b47e1. 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/QZNWX2351739.
Welcome To The Devils Kind (Helluva Boss Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f63602200737e6c51facd937ff814e98c1bb3184f3a2ba4a2d76bbe921ef84b. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZNWS2327151.
Lonely Soul (Amanda The Adventurer Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b474e0c18fd6eede66a8802d91cdcb3f3f7ec71b3b22f2c357bb1c5b3b1242. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZK6L2360703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fe692d1d27c6de672183d3fda0504fa4f9becd2c51ce568e0e6a63b4705a9f. 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/QZK6Q2313447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8080461c80e853efc243035774cc837713833cae23d659428318281d5fad6ea9. 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/QZDA42310466.
Our Misery (Bendy and The Dark Revival Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4e993f82029e7c9bba854210ec3c997d0ad7eec3de152ddab8c4d70361234a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZTAZ2226413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38fd7af5ab019f7092f03d891b00933d69cdad6852d819830ce4d97a9bf8620. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZRP42211751.