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 0xecfca5e9351ddc2aeaacc3311bbb21d760a123ba067c99f9ff742fc56046ac54. 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/0d2bd988-85ac-461d-aa58-08b1cda3b8e2.json and https://artists.proofprofile.net/proofs/artist/0d2bd988-85ac-461d-aa58-08b1cda3b8e2.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 0x995e478466976541cfcef68c34d30b2df2ec7bd4b8f578acd3b56d73fc2ca078. 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/GX8LE2405631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f619b399991272aebc7519f9ab203c68c766d08ca707287f266798ba91bc0f5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GX8LE2447462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502371cb64f2d21a822f0dbaff0849454b3059e3727fcbaaf9ad541f278f308a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GX8LE2414410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a33ad6332530bc577d23d3c86c2fcbab5c57d65dfb402f0a1cfe1a2ce7a666. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX8LE2495567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296912f8cfe0673e54c6284fc26a65400e2fee6b863f2b411c1835291218a91c. 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/GX8LE2443933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95b80fd9ad4cebd6df9cf5a487e7229389e9e80b27028606b324b01189c5315. 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/GX8LE2445961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390b6981426c67ac157be353b5f2813f65cf8fe2512aa87acb59a64efe01cba7. 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/GX8LE2484192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52965e6965a004a8d59173f6ae211809c2c26b31cea941bfe3a5baeb39bce21f. 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/GX8LE2400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99eb89fa7fcdfb629b09800fc5e77cd9fbd7061c4bf56239acfb07261ee09ead. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX8LE2423221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1694a36e458c5f8a37a80222d5bcf13491b658f3f4f2fb23d7e46b483a035ab0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GX8LE2454401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d661d748d04413a9354fba3f3106ad9330cf379c59550d37bd23750eb9e488. 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/GX8LE2473632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb464fd2f4ce2f6dc327a7b2c9fbf5414b6201b004e3c3148a1c74f50ebe8e26e. 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/GX8LE2478858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57284ef636caf4cefc58d0851fc6ac08f8b46be9526f0d4246910fb6ee4ffd44. 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/GX38U2384757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51135a3f4f44ff6ce330c7eecb1ee000fdb113e109b1f97bbc432251d498f1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX38U2346253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22cc5b1f36c2699ed370a42d86acc852f96ebcef9603b1700186319ddc48913. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX38U2339543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579be1aacbc855d49b9b57a2c19e932cb58a5eb1ed2a5efa61a35923ec334d78. 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/GX38U2365049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2656cd174340b1297db83c422ed102d7a1b6a8915d08e99564964182bc00740e. 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/GX38U2370843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28302cfea3d4fb6418e0d6aac590b901c0edce871a9652ca96df88671999b9ad. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:21:21Z), 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/GX38U2355535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2426f8d646f98788163725ee243ed2ca50dda32d453364d8b8579ec0f0e24558. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GX38U2390689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08608285909b6fb74d2c04200a0814bef11397b257216a314e13f47383609cba. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX38U2388940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ab7e1244423c649acedb25f1adc44efc15c0fcb98b2595e20c8bef6fb21ed3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GX38U2372585.
Timutokoze (Live from Brentwood SDA Church)