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 0x1628231784ccb03a1ee4eb299c0876439bd71876793c81f51b020cb8615a135b. 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/96ff8f2e-c295-437a-927e-e10dd7ab594f.json and https://artists.proofprofile.net/proofs/artist/96ff8f2e-c295-437a-927e-e10dd7ab594f.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 0x98e7c24b68ed3149a71d43503dc965096c074026fefd9ff473054e496e276172. 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/SE5752438371.
Imagining scenarios that will never happen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aab28b41f5be754faa94c78dcc32c6dd387857bdf07a5f053a5aad90b80701. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5752438372.
Thinking of the perfect comeback way too late
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfe594e923deff3f68dcbeaa197f996d32eee6a0dabd1e136ed3ab67cd5fa68. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SE5752438373.
Worrying about things I have no control over
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261c8f776500b0702afc156b10c5bc193067d803b4ed21e6c90d56f925b3a215. 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/SE5752438374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874777ddca045d28f5a6a30ebb3b440a872393ea781723923f75926665da9b06. 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/SE5752438375.
Hope I remember this dream when I wake up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e8590c0433df0c316eecf8111d1e781ee8da71f6c0dd202162490fbeddcab0. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:41:54Z), 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/SE5752438376.
Choking on a chocolate bar because I'm sleepwalking
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b370a32bb47cfc51f48b452677ce2617b73763637caa2d2a5849ca141bb81b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:39:06Z), 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/SE5752438377.
Should've texted back, but now it's too late
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3aca608781bffa4140743f138b27aacf900b72ee83a20bafa6539b696110ef. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:33:26Z), 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/SE5752438378.
Wish I could tell them how I really feel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155326e962c95f42328ab472732ad5d199e0a7655417bd4bc8dd897017521f5d. 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/SE5752438379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafab89b26152944ea62b7150b7e663e96052197ea071d6b22894738e97b0241a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SE5752449721.
Once again saying “you too” to the waiter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe244e94a608ae505821eb6ab44998fbc24ee26c6da7f900b5f15622cb4f40c7f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE5752449722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b97c9b768f2c45dfa03b3841b195fc888a9a9b29498503c15cbbc42267c931. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE5752449724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc8bda346733f5d40269b632e3c76aa96a7379ec947a0e4c497a79fd311bf3f. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SE5752449725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baf32755c36b935a60d841b2598dccf637bfafff5bae32ba9cb702165a82f67. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:43:40Z), 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/SE5752449727.
Spilled on me, now it's a fashion statement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5615105505a93419d8dd37cb54356df2cc5abf7ef85159691da470e534c6e2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/SE5752449728.
Realizing I've been sitting here way too long
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5ab4e1e7861e9ad1b4e5b7b37ad9379a3b42c83aa4f01318908131cd6d8a1c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE5752449729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7c761ef3118327e4d131b2e9911f758735440a719b111a562e993bf67cd73a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE5752449730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1a28c88a32aefc91fd37698971638cb323e7e5ce381fee377c49ce244f1920. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:34:44Z), 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/SE6HN2420496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389c1cab0a1e755db32a4be4184ab41dab828d142b88b49614ec64d22d8acedf. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SE6HN2420497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf81c7a24d395b7dcacd2bd909dbcc371fff113465a0474c0bb0802e2137bed7. 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/SE6HN2420498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826bf5b910e1dcf6c096172bc7ce47bfb8e7c380351e34ca6bb7a417dd400c47. 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/SE6HN2420499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3814460c093070059fde6ae217f35aea7248c1026e2f8cfb8b30f83bd95353aa. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/SE6HN2420500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee11561614f3c87c405bc48fe5f4512a018cfa641830c259fcaa8ce25c1f6813. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:01:12Z), 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/SE6HN2420501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11ca5104da631d436b40329aeec1e263fef6baed06f5039af7d167e7ec9afcc. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/SE6HN2420502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388b63d0539c7cda255db923a0280ce7dea0a380856ffc7e91899c45f953e713. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SE6HN2420503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03fb77ccee99d9d84c4a2f939ef343695776c2fb3f7f79365eaf5bc2a22c2ba. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SE6HN2420504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6038247fbb08ac6781989b781aaaad944449e22a7d196ac85ef365113c59e7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SE5BU2580170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca28e45f68f64e8406caaafc0d5b0686935e27258faaac4232951ee2a4c234a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:36:13Z), 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/SE5BU2580171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18dd9d147846f7475b2228b33c602eeb5c102f1c43b344dc9c4cb34c4d57f7a. 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/SE5BU2580177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd6ad9bda31bd3a632b9df4cc1cbb4b62f99d5d0a117d6584cce58e4ed32dc1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5BU2580181.