INTRoVOYS is a Filipino pop rock band formed in 1986 by 3rd-G Cristobal, Paco Arespacochaga and Jonathan Buencamino. The band is now based in Los Angeles, California. History 1986–1988: Formation and
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 0xa8a8e54befea3fb8fde1a8db9b38a28ef1b2d9ff6abc6bd49d8a45c0c5d67465. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0016191-c211-454d-8621-3f404c07c940.json and https://artists.proofprofile.net/proofs/artist/e0016191-c211-454d-8621-3f404c07c940.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 0x9bc04ca499876e520959acccdaef08d7eadebdc21f38c336da31a5b5c773285c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USA2P2326469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b7efb2e30ed90887cc7d6d1cf1a73c82d3291df09f8eef3f9a613219043426. 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/USA2P2326467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367078b52c180e54b2a9d5baffd5237b92dd45805c4fefa59f71b8d7c24d2999. 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/USA2P2326468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36495e701ffe21f86ba7564825b7cd0cb63922ad870559629eec9f7c7dbe9816. 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/USA2P2326472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa656ace695b37d586f5d186418bf81e71b06e51d3f2befc807b6f6fb1c193a22. 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/NLRD52300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ae626443305baf6777a6c9cb204bc4da1c0060341af46c27d54596ab0a7643. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USCGH0790599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b21e8b452c7e6c6aba28af8b42c091318276251c9f8f51d06adbcb8b0a59d88. 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/USCGH0790601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8e792ca73b94af29b4763e3d3a6ae0b46e847fd0da346e703d99db28ceddd. 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/USCGH0790611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5810d4fc78465e3468ebacde90646c7345d0cd8ce520c0c9fe0b1aed440ad01d. 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/PHP171000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13127ae16467bb0ab734feca21f0c0b2048b4f1f2eb1c826de65604d403c952c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:34:24Z), 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/PHP171000196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ada9a30c5c06f043a48b664b3e5b9158ead6627ed2902236451beb8203162d. 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/PHP171000197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d6bd4dde1813852df40a9736119a3f5f9c282f20b5c579b4cbc468c0f1622a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:05:48Z), 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/PHP171000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb663155dcf69d859b293cbe1dcff0738f5dc83eef006c67e2d10ead2976dc1. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:30:04Z), 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/PHP171000200.
PolyEast Gold Series: Breaking New Grounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815b52b8c75694f5d8134beb086024645cf1924313dab226f666c85f3f759c33. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:20:52Z), 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/PHP171000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c025aac630537b1f29001bd51daf49d52ec71065f4d5680d55f224242d0b992. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:09:08Z), 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/PHP171000252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e283f3d7159ae3b0d684cd624916c1093e64c3a2a4abb0946ef2a219d19856a. 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/PHP171000259.
Polyeast Gold Series: Greatest Hits Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627fcf97c607af96c766acbf167067ed1a02b48dafff10603774d5717556ff1c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PHP171000202.
Polyeast Gold Series: Breaking New Grounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c084e569518b8fa542a030432651c4d61ca62301ce6e04f2251f7d3a6e45dc. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/PHP171000253.
PolyEast Gold Series: Greatest Hits Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627fcf97c607af96c766acbf167067ed1a02b48dafff10603774d5717556ff1c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PHP171000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1740a9e0f4ada9328216618d6d07933be58364eacf1fe9b49abdb85bdeefd6. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/PHP171000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cda7193f1119fe4362b31254889308d7cda125c26e0effcbbba86449a6b1d18. 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/PHP171000217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abd46c39f1b3b220ac888a5298a1605d1fbdba4f2f5da05bf2fe6b30a917b20. 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/PHP171000192.