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 0x1a22190de846bc45991f7c64388cfbb707ffd5017bd4eee4ddb67f093e4da0b9. 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/e4beb1a4-30f3-4dcb-be7a-7e383b443b9e.json and https://artists.proofprofile.net/proofs/artist/e4beb1a4-30f3-4dcb-be7a-7e383b443b9e.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 0xa86e807c01f92d1d4f113d31eec64b8c3e081bcb38078c68696604bc9e90502e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR2X41849031.
A Byzantine Christmas (Live Lebanon 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77a895ded41a7c70abcb911e297ce5af64559647f45dd2ead040bb5c4a8eb12. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR2X41849038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60faa00c69eef7661194a18398605275579ba653a432ba109b80be6897763509. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/FR2X41849039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42c205cb82e8ae33519bfb4a8c9fa85d7281eea0fa3a7a0b2344b9edb62ba8d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR2X41849040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33c80be30461d26ee17bbcffe53cd894fc3a5b198330657791eff0d9e6f3c30. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FR2X41849041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3ad807d36e53c48cc692a765d2a6c659a3aa9967bb88fa327dbe7839e9ffd3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FR96X1804226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e14916e0685bdaede0c61b75674ad1d376971500239ff2e2843a31829ad240. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FR2X41951231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25047b615f17fad202b8cff671b8b169b6eddf7090dd15d9181ea150cd54bcae. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FRX452088803.
The Universe Is Healed at Your Divine Glory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004d2ae56036b1bf032d28ec013136a309c4bb3d057141141f05add5a474097e. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/FRX452088806.
Veneration Theotokos, Candle in the Dark (5th Mode-Minor)
Blessed Mother, the Work of All Saints Is Holy (1st Mode)
Veneration Theotokos, Candle in the Dark - 5th Mode-Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770b320a8c498bd38a36cc96a6881d6bd766884553dec9a289bd467737c54298. 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/FR2X42044541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2ada21fa62fec9dca9a4c10a0f7819e717920e660a670d0c4bff98e03f14a8. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FR59R2001349.
Blessed Mother, the Work of All Saints Is Holy - 1st Mode
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8991bd3a2b27e268db654905ca5d43608c5533d92a992ef3313027808e0055a0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR59R2062369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5d37570caf23712ed4ccdf2977cfcfe6eaed85f222c5a32e6dec557fe246ff. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FRX282056728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85422d2b785d112b959cf3acf4c04877d8348b195045618f032291b4c6cf35ad. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/DGA052089889.
Forces of the Most High (Interlude) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef551bf7b5190df42ba1b63321454d121e02fc2fa915b310bdc42fbd965b7d6. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/DGA052089892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecabc23d413ac644888c69114d32905cccaae4dec855d2b56d2588b1063f0fa8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA052089898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e0438acad9301727ac175ade6d336ffcbcf349d09cf7cfa874f2cc130180dc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX452131503.
Kabarnos (Live at the Assad Damascus International Opera House)
Intro Hymn - Live at the Assad Damascus International Opera House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fd66622289186298f53936b5d3eac4b0e1e5655644fe7c60d6c24519c70038. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FRX452306939.
Evloyi Meni - Live at the Assad Damascus International Opera House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf4509040495bc86bed5b07e5c29e6fc13ba09f3dfcc3e30beb4367b23a19ea. 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/FRX452306940.
O Theos (Saba Mode) - Live at the Assad Damascus International Opera House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c0d41321363f65585811fdda9c1e0ccd34b7c6cb241418442bbd4043e92ba0. 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/FRX452306941.
My Soul, Arise - Live at the Assad Damascus International Opera House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd518c87690b29759dac2cfdf378f507c344fdfa3071cc5c191de90d313f43ba. 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/FRX452306943.
Eksomologiste - Live at the Assad Damascus International Opera House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fcb3e5ef2d0d7de47ac596dac98b8d302bd6b8471b5438df993bba0dbff08f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FRX452306944.
Kiri Eleison - Live at the Assad Damascus International Opera House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799a2184b8d7b204a04e056856a7ba99210d84da810bec63d07f93b230097d5e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/FRX452306945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f8e27d9e979ee8e947b7f40bb7eb94919a9fd3dde18de229905a337a21c23f. 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/FRX282388305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ca68414c24e33693a0be1aabdf72d19a8018ceebda5610b1b8ad9603e090d5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR10S2522560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ff2c21b1eeab5a1a8d1aa05ff93e599ac027faf137ec8152394f252c0bdce0. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/FR10S2522561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50d3da2ed281a8ec4d61f52c3b5a1c772c8ad318c582a46d79099c5e5805954. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/FR10S2522562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48ac7e16801b0fb3a96ff98b417448c68baad0e95d84f9cb0e9225c6cf7be2e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S2522563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887b31331cd1e4757fc09e8e6abe10929fc86e0e63112c08294ddfc34b63dd98. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR10S2522564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac069ea06d24e95db31efa535aded82e2c913360e9e79f530b1f88445b5e50b4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR10S2522565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ed67ea312b96ec037dfcf8c3f5b33a86f1c2a3e0c1aefea1c54fc56b1f6a8f. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/FR10S2522566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1295ce419b96ee54cfa72ed996ba51041bb6108cc8a034d638bdf12e5ff3e5fc. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/FRX872566611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cce6adc58a26ee5880fd002d1dd07aac676a35a01558c8b0878df73803f6a07. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FRX872566612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffd7fd39c23c4c375450a80c6c3d21a9bb70f488a1b35c4b83d140d13dd7955. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FRX872566613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc043a7fb35282a766d4e768b26daf02a9b90a4e13658781c9fcf5d95e778da9b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRX872566615.