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 0xe831e1446be803bc97fd77b932154e6bc49cc40315c43819dc638d6a33e844f4. 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/abd47bc8-63de-40f1-b7f2-fda36cbea53c.json and https://artists.proofprofile.net/proofs/artist/abd47bc8-63de-40f1-b7f2-fda36cbea53c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116094de48a18ef161fe4e3ae3a754a6c6775c534b524428f016d7e2955c5806. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:51:09Z), 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/TCACM1637779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db7063fcb72df9ef8417968e6f0f93eda1b167c6872529afd5d2ea71ee0bfd1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCACM1637810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2994148fc66fe3fd85f042602f02dd440efa8a0a750ea2cf7dfe3b28d233282. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCAEI1927352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101f67deb1b2b58d26bdfb005d9c532c25ca5bc1c17f45a94e209a8e23e96608. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCAEP2074585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f940802e10e1b3c014b2b3589cfbc2a1c7638ff0d6266e282f547653b6dd494. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/UK6KW2000283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9a9e997aaa8458e7883f923de76d0d256d1663dcb9bad329939b5b5e7f713e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UK6KW2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4211fbe12567bc7029e2dfd32a049fdf7983ad92c6b5e4a626741c96b19cc841. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:06:13Z), 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/UK6KW2100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429ecb8046a1080f23e78c71ba3e63fcf7c3ede8a34699a01b9ab8f79dbf4f1c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAFM2190497.
The Weather is Getting Better (Piano version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658158672baf47a642f93ead5b02888386096b312e19b28a0e002be5305eb866. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:34:29Z), 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/TCAFR2108724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79469f056368361618c98de678d8998fcf94c2725db1cb517073ef8cdb7bf190. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/TCAFS2111483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff34f1e1d937b7f738da42f42ea4889b8667c47be7d47d6ce7dca9c9f5616cee. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAFZ2116851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2755d683008d63e9bf9c2350de1d09366a4a4088d0dc85e184cfb7e6d951994e. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:09:21Z), 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/TCAFZ2240874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6fd2773eafa06d26f1e429bcd3b8faaecfb69be5248dabdb72a4105af0cb96. 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/TCAGE2234136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4867123890ee18a6d292b6af5d93ec4c808093467929f812ec27f668a788f16f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAGI2227698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2ee05e2e316dc83d215e0fc956d817584fafb0f0e34f80cabc9f01740e8f12. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAGS2357768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd999c1243079fcd09d43f5697cd48cb2c43257c59dcab6c72a810a90f44d95. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/TCAHC2305307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76e361791a22d2e0ac8b1d3835c1793681c4c45fb3dec478811dacd1992b0b9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAHC2305311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeee7283dbb598b6a671dff21313e64cad87e00ba8ea4fb1399714589799b221. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCAGT2336545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7549e9172b556b053382960cb5008ed81e45a480cd99680b72b31f406eae9ce. 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/TCAHC2305340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd0a55abf8f4dcaa4b84b4b04e74f786d9e7a585a3cc0eeb6938e81f57e38c8. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCAHE2328739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd834d7faaf6a6b91ebaeccd165d02e8e36a6cc40232a75731a47e38f59d182f2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCAHO2305379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1096ce4dbc90c19fcf834cc94b81ea86041eceb739f7b2fa6da087e4a7c4b27f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCAHO2305391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c2d2315440b79d6ddb4e1d70764dd00f0ee55298673dba3a5e8ab6200c1d22. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAHR2337592.
The Last Lullaby (A Simple Little Lullaby Reprise)
A Simple Little Lullaby (Felt Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0a1dde4f077a75dce3e2bd043d26c8473bd36b4386aa81c028aed4b5c0b119. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:52:08Z), 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/TCAJL2542030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd22d7c61acef6fc841d6eb1fd99e6d5e408c712834e371d314eadc3ec3a536. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJM2541874.