Parla () is a municipality in the Community of Madrid, Spain. Part of the Madrid metropolitan area, it is located in the southern part of the region. Geography thumb|left|upright=1.0|Parla as seen
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 0x88e164a8d70437a7768a916498fff8b0f53afa762916351e8abb19f8c94aad96. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed2b02df-5392-4e44-aa31-85c88ceefe69.json and https://artists.proofprofile.net/proofs/artist/ed2b02df-5392-4e44-aa31-85c88ceefe69.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 0x707174a0f7a50378d343067c142e659f287d717e9666fb9eb52ba867f6d184c0. 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/FRX872302222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a4f91cc49129f72f5b9b602f202fba156e83a8d30672086e1492cf5ac083e0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:56:09Z), 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/QZWFM2493685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd5346d94f9b233c0e58ee2cface0d9f903eddd4b9c0b26514ff0f8f5bd5f7a. 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/QZWFT2463600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d42343f1d329b26441d0297242357510da99e58e48614ef7044a94159405e2c. 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/QZWFR2456042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e98b4a5d499ce079a8d8bcc3a4eba669ebb091b11aa8632b101da54cd6891ea. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFW2461361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5165b873858a9a721b8064bde7d784ad8a95045be85f200d2a0fa1b6b432f23a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZWFR2461427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157b0b8b7f7ea4ba696c03a3c5e58a3c6c83661fd50312456ae9eb7ae33b5492. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:53:13Z), 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/QZZ7M2444274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cb924866c15dcf6d1ad48c87edd377ef7ce78c42193b21fed40973f39b27f0. 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/QZZ7X2410278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21ab55002162a3e01b687d07e2d7b52aaac693b222a409af1469c9761a36956. 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/QT3EZ2466270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe887fd3ff4f54d34949c8f5a5b7256bd491c6bad369880e8fd068cfe7a4f0b8a. 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/QZDA52503344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee503111a91d6b4ac482a7ed9db2dba8990b08bfeebaa15a6e321c2bd0fa64d. 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/TR8222500590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ba2d8418f24a365878ad9ee07c3fc9f5bd3da6250672eaa9818c6f1b1cc302. 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/QZK6G2579387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891fa9eecf0a1e3482a633a176c82abc72a9a8eef7e3f4ad6e1ee1d6c7853396. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:03:00Z), 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/QZNWW2591733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99134e83ca3ad862710eeda1fe14937c334e995fc071b23af16ea70df134faf6. 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/QZRP52506520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d658acdd60331d2d076d3e6e6a138a746cdfb267b5c6bf24b39e07f8d3a840. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZTBF2534341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f79bc5b301bdb295c2b5aa561d5821dbcc2c17e9b3c1e39dd75b709b36bca9e. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZTBF2534437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a22f4cda6fdea687a3522e02ab07ce234421327586b282cc894aad0fdea91f. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TR8222500612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f68dde4e93ce4d4bee8015aae0b348dc21f8559dddbe180d5fad4062208fe01. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZZ792584663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c1fb9d748d0d462f3c2f192550f0ca5400687096d6daf3dfa2fa292965c3db. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:31:21Z), 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/QZZ762577746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c38a307757f0e9a3b50427b662a88d943f8555b8d3f2f30501d1ef738876d12. 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/QZZ782545623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74e5101ecf5e46065625cfb6daaa0d83f355e1f222d7d3fec4c866b88113645. 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/QZZ7V2555495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ac28507a14279fbf8e4506d4725fc6c56ef263228eea24187829ee06b596af. 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/QT3FA2587389.