Pavlos Sidiropoulos (; 27 July 1948 – 6 December 1990) was a Greek musician noted for combining rock music with Greek music. He is considered one of the pillars of Greek rock due to his involvement so
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 0xe8104aa163bba6d9dd251239957419e984bab0a839d0beb8261abaea980a4b46. 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/eeb04519-1bae-4620-920e-1603b40ffaea.json and https://artists.proofprofile.net/proofs/artist/eeb04519-1bae-4620-920e-1603b40ffaea.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 0x0b577e7c8e40dddbc5cc5466c21f7c8be42bd2b706ef4e7c49fe35716abcf2e7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GRE018200346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95772f63394153ad645999a8e2bcd24d31d2c4d79244b19f5f22c01a70aa470. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GRE018200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185a461ae0b06d60dbbf8865ba0549fe6455a923290616759bcc9356e8cbecd8. 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/GRE018200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ea7722a6e0d40ce2032827369fa48c07a12e353e34b24a169c363868c0c007. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:53:47Z), 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/GRE018200349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ac1cfc4a087f5ef714ebe8fd49a42e1d9b88a029d060f85ecb01a0d97ef180. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/GRE018200352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3aba53fe1420ee2ae1194066de3de2044f7411a9817292e26972cab861063d6. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:06:28Z), 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/GRE018200353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59318660a97f0cfe04a1a9c4c7a5eb80336496bce8ab3c5df4975ed008c00abf. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GRE019100357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cc89749a6733523a4587c1e6452929d0d085f9783b1d8f83b75e40c6da4e91. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:24:59Z), 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/GRE018400382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b397e68fd092000609f6b75fb3285527b37f3001ac1854ec144e02ff657795. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GRE017800253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf903491b37c1ad3772c4be9cb1ef6bab9c32aa571e24bda7b6f1db0c4c0c1a7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GRE017800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1f49d145e649030d50f4efc46dfd6c32a3bc68211719d2201bacd5247e4cdd. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/GRE019100355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb112d3a7d81493bc7f4f809e036b53cceb675ef30c66be3b56884b6db2822022. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GRE017200534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92ea2d0486524b0a9247a09b95a5c3c03542df8b95b247013eb436e291e9962. 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/GRE018400375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9b7e5a7428891e6bc3473d4308ed57d2c0773d0062b12ce6e041ae52047f03. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:22:28Z), 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/GRE017800222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39b1dd6860e8f4b1976bc8e58deb5eb8fb517a4e225facdc750cfbb565e1de5. 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/GRE017800017.
14 Megala Tragoudia - Pavlos Sidiropoulos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f345d80ee8524e2920ba91d2ccd1444bfa6dd52b9043203681567f20b0bd4cf. 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/GRM019200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f884b0e46ccce2e4dd47dba058be943cce4dc1e7af29cf758d37631d653a61. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:50:03Z), 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/GRM019200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe698f1e055d4eb712e208ccb5c211c7b9132b80073a7cfa8eceee54e01bfdfa4. 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/GRM019200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225a0251d9f724a1efccc15cc0c6b5d65ad5c33482c3a30acc6f788eccfb611b. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:54Z), 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/GRM019200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f70d621952045f85acb9ead6a1f810fcafd9d162869820037a45c81a86c30eb. 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/GRM019200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164559403ddcb78472c234722f5889c079c0bee2f89a44d93a176f8cb24ed182. 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/GRM019200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24b1142edc7bb91952d1e0add40250818a12f0e82d2ee83ae394561a1fb6997. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:05:23Z), 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/GRM010700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5e80f2d8bed6ccb99d2954ac47c892fdee4b2c096cd5c81e125112c2b5ecfa. 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/GRL010900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9293ba9005707ca9bde9af7f0246f39a4239d4c81d820d871de342763b2afb4e. 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/GRL010900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7328e2f8b179a8a20603e65dd25ef6e318d55c4a192cd3f5afd3478f91e80fa1. 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/GRE017800249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba09d9d65590740b834dbab48a2e9f6a0c9783f0468962000d80ba75320af647. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GRUM71500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf123923a4f5764081fe55566658daa68b5b43aa4f7f4e33dbf4ad773d1b900a. 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/GRUM71500504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a1a115ce7bfb1666b73ed62d50c57a7c6809b503d6e633f7f31dfbb94be515. 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/GRUM71500512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476853975cfdb69acc48971e8c755a244ae384f15e4b93af8f2309b0e6bba488. 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/GRUM71500483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f6e1585cdd1136d365223ffd726afdce55c9af3c25bb95f3bd2007d9f100ca. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/GRUM71500485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6829863da96526b4127b0fce6f22626c116d43b5e29642091653f630b4a6503. 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/GRUM71500486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d383c53c2543c5d29b20be1b4a4a558bd50a53ef278f9195f52957eed407ac. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GRUM71500487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5ff17debaea5ef6cd69ca6ad0df4460cd33d7eb12a9d39a1bfc0580df482b6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GRUM71500489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d08c2877850a5929d40a11993943c8480058f9f0629c229dd8619900aa15233. 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/GRUM71500490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dbc8eb341ab81ffb6eb4de49e4bf0c1b8ad5fa42142190a2ee20f60b0ace16. 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/GRUM71500491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e4ac967b54fdd322f7ddd2e0e1fc0ca33cf7296a781edf5b6617fed17d080b. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/GRUM71500492.
Ta Blues Tou Pavlou Peiragmena (A Pleura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb6628bcaa19e84091e2b19d7fd05bc39c7f9bb243fc2732b4ac2e48fd90c22. 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/GROG12500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6c3d17c5c6b79de10e9fcacd177794c940708fabd1f2f0ba4b0e71ffc3be1b. 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/GROG12500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464a52a123b71b9b3ecac3220e6234ce0acfc5457990212a7cc4560727acaeea. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GROG12500106.
Ta Blues Tou Pavlou Peiragmena (B Pleura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60391f477e45e738e96055f605c00f2b5b091f8a00e6283726573541920ea534. 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/GROG12500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e66f417f304d82b42d7746b4f55fd35935916680631ec8fe1daa67e78cfc0b. 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/GROG12500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8897fc581586b05d0c6f16d4fe91ea2f5969c0c07725232e0b29f8fb51acf3b8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GRUN10100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03646e94c0879aebaf6d94315308d5f4e550891e3293188b4ec5b2552a872e3. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GRL019400002.
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