thumb|SPELLLING performing at This Ain't No Picnic in 2023 Chrystia "Tia" Cabral (born May 18, 1991), known professionally as (stylized in all caps), is an American experimental pop musician based i
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 0x52c0e9bb8678bdd75a43227764524e95e2d3311cc2f302978917dcd3672e28d9. 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/4ce5a7b7-2dcb-41f5-801d-c56429ec9079.json and https://artists.proofprofile.net/proofs/artist/4ce5a7b7-2dcb-41f5-801d-c56429ec9079.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 0xc978a991982fa6072dfaa9032db0e63d1120c4c809599ef63c1594f723845854. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:44:00Z), 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/QZ9JZ1743259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949b7d563a7887a3f96c890a192bdfad76e6fd004079ef4afe467adf685fb2a8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:55:38Z), 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/QZ9JZ1743260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ea9330bb607a14fc025dc9a59a50c54ae7590fcc19ce5c06fb4842306b447c. 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/QZ9JZ1743262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70357d1780fece751092a56ac206ff86c9276de466fa0fbb17f55b962535d38e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:12:10Z), 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/US5NR1922101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471ae2df5720fbd8b4f9772343657d806278433521386a4ef47f6f0c86b171a9. 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/US5NR1922104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6325ba40dcc9455d98b27b7b9c5774d1622cb938ec44cad53525e720b3984758. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:27:34Z), 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/US5NR1922105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54450cbb2b699500d89e386e5fc0f5f0fc88ae906b76d830c246a850d1b2c621. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/US5NR1922107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0016e8f6675db793556f3bfe2790ca0ecdaa75366c0c52bd1b7b4ea67f0a2273. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:52:18Z), 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/US5NR1922108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1ca823ba34de66af73a53e50e797219f4e8050afcb07cfcfbba9ecf8d063d2. 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/US5NR1922109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010019564c06efd9f31cf357b6511e81bf9e6d35d848eb70688dba6d3b3c7804. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:41Z), 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/US5NR1922110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5ad07e5ec9c98a19b497757a7f4c1fd4ca9d25944b43284cb5a27d94c520dc. 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/US5NR1922111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1505f352381dcb6e12757ae94b4b3eebddf054a156c63edd27746e6aba3331b9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US5NR1922112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d9439fdd4f81a32aedb55ce978e454f9669088caf4ce7e30ce7059edf783cb. 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/US5NR2332302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77fc49749db0aebe720ee95fae5ef101a06d7fac55d10bb2ab90f60ea0f9147. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US5NR2332301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0439734090352abca3345cc5541845976ea811940d61287d5c2ba18262c6f9. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/US5NR2332303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e31a985574f8645ceb82e6d07ac19031a06767bf10f868daf3c6970d7ff2830. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/US5NR2332304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe141ac1177bb500f2de91ef849e83c5a2ac99ed180a25a885ae1e94f5c73f8bb. 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/US5NR2332305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1e39f429a5b8539553483b9078512a6835bd623318cc31835911d48f24dbd1. 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/US5NR2332306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750c28ee921de508f12a5eb8b534f4ae265886e3938341591561df23f9c89aed. 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/US5NR2332307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216e89a196bff3d960fa9af378355178b77c1bf8c09e94f47c74c63933772772. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/US5NR2332308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e348b03fec84d6687f6c76f5ceb02e3bc14686546d3a938daa4adbccbe3d131. 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/US5NR2332309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213e6015126261d3aa2ea25c167bcc092ea843b7c0368707b29c56ef66f5f6f9. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/US5NR2332310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f73628fa4064d0c15acb8aa7fd7b7d7a0229435d985d89dde6f911bd5783418. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/US5NR2332311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c10b567c697d4615c5183818464275086d9dcce93ab4b20e8f6b149642666c3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTLA2425495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c10b567c697d4615c5183818464275086d9dcce93ab4b20e8f6b149642666c3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZTLA2425495.