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 0xbb44948bbe559ddebc3dc18d72aed6a6bb198674ca9b4cddc360c1d030cb385a. 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/0b0af1c4-4409-4709-afc3-45acd7af67f0.json and https://artists.proofprofile.net/proofs/artist/0b0af1c4-4409-4709-afc3-45acd7af67f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It's Your Fucking Fault That I'm Dead on the Couch
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 0x1e7e3d3803dc2c001cb934d854d3fff29d7d0e599674edd73c7451dd3702041b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:27:49Z), 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/QZFP52034536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9246a35e5d027aff3cd67b8c149f95f1fd56fd794b00706e4933bcb672002a. 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/QZGWX2199829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1006756ed0daae0a5f5e98bf52975d4d95186fb8c3f24f49a5abe8d16a7e54c5. 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/QZPJ32119884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6f4fea24c4867739f7c3f7d79a1a57bfd2ff5a96b6ec8a46ec83bb547f2eb0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZPJ32119886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b97b7e239830f32190587b77cda745fc7c56d3aed88ae5ff13dcfd3f773c5f5. 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/QZPJ32119889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894ee46cd712b8d4885957ba8111f753a8650a1255aed59a50cc29a469168da9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZPJ32179425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2728047bd99fd833272bc87d35e0e121639e9f095bc563d76e7abfb8f555e538. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZPJ32179426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7fa8a7af0e0731c2ec634cde79ae0e3a7ba95ca762894e1bc67c2eec72e509. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZPJ32224728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6e227ff183f1df1555bfc879fa1898e30ab598cfa8ba415b82371e9f252a59. 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/QZPJ32224730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cd492f149f006c128dadd4600db20eb16eeb5e5944b43cf18cb1b98ae847f1. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZPJ32295775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf90042f0781e554d9047080b2ab6ac29e3cdc8aa444472079a633a9f7319f7a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZPJ32454378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a4711024adf814f1f7a58fcde631ce8d9c99aec09af2fb67cfd8e435de5e5e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZPJ32197119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1063bc249d6c5606b1c6c29383f89915bfa25a576ab5780216008db69e61c41f. 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/QZPJ32179423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02328feda10f12427999cfcf08d0810f7ff9e71796228586bfe25d52a68891ee. 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/QZPJ32197120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a31197d88720db3985c0bdca03e3ac2fa77d2f8510e7f72e242a8065b27c96f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA012245972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca83088a5b6edc07a3665cf7468ea3a93cedc0721d43eb6366a947d6139f01db. 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/QZGWX2203918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c161295813e049133c3e4565ad4a193553b0f9adbba77aee856f3b69fb198e7. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZGWX2051032.
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 0xe838df017ace9b0c7750c4e926c9057ca03fa764dcb7f95b413f12f9303aa3e3. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ESA012288428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5219f6b01006f26b03dda59fc9b66cfe0ae721bf81e605eeca4a142b50405118. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ESA012288434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464671960e8d94f4d1dad55ba4dc72178206a67628f6513506da54381bf4bcb4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ESA012245934.