Greyhoundz is a Filipino nu metal band based in Manila, Philippines. Formed in the late 1990s, they gained international recognition for their alternative metal/rap metal sound. Background Greyhoundz
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 0x636234b519cc2f7d586ed66fa7a9fd1b14621ed47a5305fbb780c5a9ef358119. 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/3fe775d5-6d5d-43b8-a68d-114a2dca7dd5.json and https://artists.proofprofile.net/proofs/artist/3fe775d5-6d5d-43b8-a68d-114a2dca7dd5.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 0x9ec4049db865c1d81a28f4d33b3866f05b5035bcafe77ec0dc4053eabb36fdf7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:22:51Z), 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/NL8RL2456510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c1da88fe16faca1144701755c7ab70276d6f6a30c59b7765d7637fb13c72c1. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/NL8RL2456511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cac9022ba969e9008ee83ceb5243024e1ff2e17a609348e066f030f624b64e. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/NL8RL2456515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c948899b9f7c747d0f822e489dc017dd1f4ecf7e248ef6428f54707b7ca60c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NL8RL2456516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b25e690a920ebbb101dbaa41870bd7208df9565a7495eb1d8a237df1215a77e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/NL8RL2456517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f558061ddd1e65a29dcd583e8fd440f83da9eb553c7ef814f7909bb0240d669. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/NL8RL2456518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e001b734ee12074fddd7efefaa3e40c26970b40f018b126044ec31dd32379f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:52:29Z), 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/NL8RL2456519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3757faec04c6c35dfb206b3d8cddd17f1f54adfa14d76c07632afd3e08722f9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/PHS110100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce6269787c64826d1125bf75956cd2f81c9c5b52cfa50372dac8bb0336e6725. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:16:56Z), 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/PHS110100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f074dab645000bc3979d4f04ad0a67f12b53a4e6835440a9aff245293405f40. 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/PHS110100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4989a5ef78f1fbb370f5ff73bae2b9fea60e92299d8f93a9ec5b0c1e54cd33. 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/PHS110100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eeea3affd983751db736b362cb26aa1f82ae109b2a9c66f285ce52792ef387c. 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/PHS110100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e56032e304b93192f7f3ba73bfff8c4915002374361bdb598db80cc0e9e365. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/PHS110100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6748dc46e6bbf9c35227e0afcda3d0b6622a2ab5f0ae0bbf804aa28e32dbb9f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NL8RL2456529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af8547df24a0360832772b62fd272ae397ebd46398860f8f153b08b9068b8d4. 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/NL8RL2456531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee05a722c3596956c6eb5123a9f33b037b4ca9061439e4cee21ba27bbb35cb59. 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/NL8RL2456534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798df88d3699add19ac56dcddf51ebfba08268e7332d7123296c2c152d408531. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NL8RL2456538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc730292038c88ed010678beba23cd10afa2b1997b8253e23442962f97a8dadef. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NL8RL2456565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f513ca11756fa6fe3b32cb8af11c4c282dd5aecce9c94be858641c0ef7dedd. 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/NL8RL2456566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4a7d632e75851ae83757552b342d80f259d9604cb5b5df9f4d25a5825634f4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/NL8RL2456568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22107e05e0840006f5cd01d70a3fec0b81f800248b2141ed2a1b54aeb24ff173. 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/NL8RL2456569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3830ff3ff7f2f0440f61a00bbc1838345f61270ff88dcfaca5eac4651dbbb98. 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/NL8RL2456570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcb2d822580b13f0b826a1f796d9f128bf0cf67d48a972ab9838f6458d2ae89. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/NL8RL2461853.