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 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 0xa043f33f55cedc6d0e19b14b0ce0d68ee98e2b2841f472570b4ac9383b32ee98. 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/af679418-b190-4da5-a951-304bcab74287.json and https://artists.proofprofile.net/proofs/artist/af679418-b190-4da5-a951-304bcab74287.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 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 0x7b5601dcd01eefe29ec4a90bf1454b959d3600d76766c0646f0115eabb097aba. 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/QM6MZ2066731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc856cb3351eb27103ce5360a959922b36fd45bea8dc7021f31ecda3c359c0e30. 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/QM6MZ2066732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec9b9b993da3d22157f9064d2358c8c8263881a49c7e94a1dc0636c20fd6579. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QM6MZ2066735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cecfad608cd07f0a7b1fcd8a9c893b23ef15ffb2bd390bb80f4b6a77392060. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZGLM2220416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75f343b1bd80561ae47b724cefa6fa351d593e54bb44dae49955940ab9f00fa. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZNJY2259605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e1371f4752755829b00fa8ff76874611dcd79bd323fe18d8012a772e6815f2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZNJY2259610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592847f926f280a71506381711ae0ccf788b84a90de0e7351e13690742761dde. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZGLS2545802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f0cbfb1b76e9017610e8483d628d4cd047ae1ad92e4d40571546e68f0b1751. 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/QZGLS2545803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad59b61fd34b7d8a7dc779e20fcf97b85d33dc40cb93efff322c3371c697d6b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZGLS2545804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8f6cb9f2f7a24a6f684292b92a0c44fde6936691aa18db2f92034e4a836498. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZGLS2545805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa294015d8f5193a62a39a3f9b68d97aaee84b8cd7f41ab68b3a24d6121322d60. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZGLS2545806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669c75b4bfc170dfd82bab26356c2b13ac4038cdf89c3002c4ca19cf3404d4b6. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZGLS2545807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e490423d16326d9254d3e0ca28d6011d9bba177bcbdb28b9b8d7fdcd3f4754. 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/QZGLS2545808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60a28af99501329a24894e83025e07f1857a25b488bf99715a065262329da12. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZGLS2545810.
La Eternidad Está Cansada de Esperarme - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4d1f6a84e4954355f59e886ca4ed2544a4b33ca20ef0ab6b3b24368181e16b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZGLS2545811.
Yo No Quiero Que a Mi Niña Ni a Mi Niño Me los Vuelvan en Cenizas - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ec58c182fa3a987e175f5c733391b35c20971291a7d94b6848d5fd3a0d6d60. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/QZGLS2545812.
Nadie Aquí Me Está Tomando en Serio - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b159eaa7a408d78a3802b269fbcffccef47776dc4b416306c219703124a6c4f. 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/QZGLS2545813.