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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0e226a6bcf36a223279de1a5ee9a4123bac44a55925065209c78d113b1d445. 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/4d151ef7-93e9-4fb5-b81a-6582ccfd882c.json and https://artists.proofprofile.net/proofs/artist/4d151ef7-93e9-4fb5-b81a-6582ccfd882c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Collection of Instrumental Piano Covers
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2940907e2d73ec421df1c1952011e4de1718230df117114706a06fce2ae2db. 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/UKG8V2000823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7abfe7547e4bb2a449411daee94dababe3f9c91ba9bb806131fc79c62b423d. 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/UKG8V2000824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350294da53a53ec4427cea382504f8dd19680fdcd5af7c54ddf5b432e856889a. 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/UKG8V2000825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb556c4ebd07dfd2ed9d13752e07972869f9de2b2124b271cb40ebb5298c53208. 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/UKG8V2000826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35972c4a9ddbf405f6484d783de07d9dafdba69ad2ee4c0eda773fd521d78dce. 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/UKG8V2000827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ca2acb6ee329f37da5cc089cce39518a407e94cf1dfee9421d7dcfd7f4015e. 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/UKG8V2000828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ed38a1c7e80c98b7b92b2eebb0dd5fd3acd07b00c8193d8bbb2ee67904552a. 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/UKG8V2000831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6818280d55c4c61c866ef63c11d2bb1340a35c8215abb297ba2285c4062aebb0. 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/UKG8V2000832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16aa4924d26c64cab67be027b215614d12c14c53d91f33bdf3ddb7d7441843e8. 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/UKG8V2000834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cc7155e27b808cfd67c8772ceca708ac790878cd45acc1e8a6fe4afd442dea. 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/UKG8V2000835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2133b3c3988b1dbe2e242558d334d8658d26a373db0c515cca69c874d9690cd1. 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/UKG8V2000836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882717f53d945dcb92ee43d3cf6993f7ce09a7bf2f9eae974538870f1659ff3b. 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/UKG8V2000837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c16049d9ea89ce8c4759f1df240f4fb8050265bb9c4dca3e6a5c1ae59b4497. 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/UKG8V2000839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc495361ac769b63d28908252d16d3bc2109ecf555fae4016f76812f840510cf. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/UKG8V2000829.
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 0x97482a49d22f1c217dba981b2584ed674b8df9f6a0d47b4e985fe1a58180ccc8. 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/UKG8V2000830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab4173b4e1906aaf16ad7aea202e5817c97a1042201d8889a131713bba00b97. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UKG8V2000833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1d39e8d6e645311dce86fade25bc782db68746d1513b26ad96e6760e64cfc5. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/UKG8V2000838.
Murder on the Dancefloor (Piano Arrangement)
Murder on the Dancefloor - Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53137d43cc74d93b371980cf490447a432f5c71023c10d672c9996d48122e28b. 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/UKG8V2400460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fd9a3e06b16700af1aedfcf43f24e60c5866f252a0fbafd17f3f265b7c9812. 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/UKG8V2314073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623597af8b46b9540555fcdb04daea77b9f753c5691009ee0fb2c108cea443ea. 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/UKG8V2314074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2969cd9190927dd94803b70ce21c577784a785004d698749b416076f976c661f. 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/UKG8V2314075.
My Love Mine All Mine - Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c066092f672c2d6c34669463090a7820ded3f78f33431b9bcd83094ff78fbc. 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/UKG8V2314072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b88222b9e675d620dbb4cfe40cc69bffb19c46157407c95ff66cc0cd22126a. 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/UKG8V2306595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32bbb711d76d4115079c17ebfaea904ff21178490b0c92d153c69623b370fa3. 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/UKG8V2306564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf693398d8e271d3803c0f4de7d04057107caec295fca5fe279489ec65b4da907. 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/UKG8V2202822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f22e79db33b4767a0ff65ff79b01ced781544915a44b897b6199c3ab9e9985. 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/UKG8V2202823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972bc3e70164ea35c5e46eb676dcda2bd17086c5c47a452c3623d9480474cd02. 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/UKG8V2202824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4015fc0bf02930deb0e95380cb0cb363163c509c768be45232925f1057a92b. 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/UKG8V2202825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3aaa23a339e70867d869b230c214992f0cb7661629b769c7fd46581aca5d97. 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/UKG8V2202826.
We Don't Talk About Bruno - Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a77ebaf9927314b244d6b9ee529d3ed1f60f44962204c0e5ceed7a45797dada. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKG8V2202827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f27bd08d400eec7ed760ee17e98cf58113c6ad3d32a5bf5a0e8755d070a6cea. 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/UKG8V2203089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded622c90c68e35308da97f3fd3355cbda5785baa3c74bac393f6bc0ebada207. 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/UKG8V2400923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5481199a665978582d57b5bb22eb0f36942d96287e9aeabd8d7767b47f9b32ab. 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/UKG8V2400922.