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 0xfbd4d2746257f3f00ae1cb93718529728192590cee3284f53cb630143b057ce0. 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/d638403f-5eea-4b71-80e2-d80ebe6bda74.json and https://artists.proofprofile.net/proofs/artist/d638403f-5eea-4b71-80e2-d80ebe6bda74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Χαρούμενη χαλαρωτική μουσική πιάνο για παιδιά
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 0x4a4a878795526e2ddebebef13d21d47b46c9ff7a767b20d47c80b07b007c3bf7. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:38:06Z), 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/NLGM12151250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd7759f66d3ec21fa32fe2b2dea67b26fae301549cdcdfe7faa55a9148c14e5. 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/NLGM12151372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0478c4d66a2b15d06c27b8822e054707f9a2cd4a7bbc121dafad42e40c0d643. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:49:48Z), 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/NLGM12151373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601e1715b0cc87d8901fc2b154141038d7916d10be2166f83cd42c34ae0d8b16. 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/NLGM12151377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9a69eb3a9579f1af9aeabf920a179182e086999bbff91e6a2974c59945f413. 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/NLGM12151381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf103c907065612d78256c9e90e0d6db0da80dd461bfa80effa5397078290fc44. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:49:10Z), 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/NLGM12151382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa028dd5ee31ded9144c79d3b4feebe2482a636668acff47b64f6f1143ef9ee51. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NL6VJ2216791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1697942d30ff5bf173b8c0a593c15e22a6588b01a35804dd5f3448aeb623da. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/NL6VJ2216792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f1b15420f4c18b5add0a4248809659f168a53c421c9763076726a46a922f74. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NL6VJ2216793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48e87b6291c2eeb5d22aece279e0d0852be84ae8343bedc8882bb5dfb8792ed. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:18:25Z), 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/NL6VJ2216796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e6a4574c14f4152b63666f00f6c2e8c61b685be4d53c9e329d68a8d8808743. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NL6VJ2216843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ea07c82565ed8f8df37b7c6b5c6b39a591dcca5a8d6ebecb19533134b9280b. 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/NL6VJ2216845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8891b8e1c39e5e477e5af50cc291acf9c695787ce4cfca1773cd10be8954bbe. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:30:42Z), 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/NL6VJ2216847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982b4f382cd6de929138646ca797efbb9a6aeefb2495ac289753ee3cdc8515a4. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:48Z), 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/NL6VJ2216849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfdb56eb9c8b347486d40224cbd5ff16b915833b764cef37352897fdde718de. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NL6VJ2216884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6897cf97c6afc5dbbe39a649fa3ee58ed162fddcfc7989b03db7b9719392ed5c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:52:21Z), 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/NL6VJ2216885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d25747cd67abd1c47d8a6eb2b30668056e54fe7045385b6e71bb1d7bd28ec98. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/NL6VJ2216888.