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 0xb93b32e8fa24404aa663509ac7bb2f4b5857532c7f05aa9af7a35a10ae76fc1d. 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/f4029daf-6a04-45ed-8320-0ede4bc1036a.json and https://artists.proofprofile.net/proofs/artist/f4029daf-6a04-45ed-8320-0ede4bc1036a.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 0xd5484b6a158c9d54dde0f45c823a0d628549cf918fba4d7c00e97666bffd2943. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHN62093991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1e0de6e363454192343051742465eea3407549512d1f47105dfd0a40bc5ee8. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:04:51Z), 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/QZES81876424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c65db5e08ce32243284d3ea5510c9cfcc6449cdf8e312f5bd5334721277cca. 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/QZZ7X2414521.
நட்சத்திரங்கள் கேட்டுக் கொண்டிருக்கும் ராகம் (Stars' Melody)
நட்சத்திரங்கள் கேட்டுக் கொண்டிருக்கும் ராகம் - Stars' Melody
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8009a3261230746322354a5ed56f7fa43dae0df8b9b0766485b5501b9b8d3b. 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/QZDA42527510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9498cd49159d7a019936a960687ea95320a8d84372424495fb2329cda2911a22. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZHNC2511982.
Poema (lyrics by Joker & Marina Shuller)
Poema - lyrics by Joker & Marina Shuller
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b9f21c8e575db4d66516386742b7001e9f2206dac03bb497a9f1015f5157f6. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZHNB2591227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f354fc8ab69f714a0f265a687639f389c7510f9a31d5b32012a71e4ed06c12d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:11:52Z), 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/QZK6P2533324.
外星人的情歌 第 1 集 (Alien Love Song, Episode 1, 156BPM)
外星人的情歌 第 2 集 (Alien Love Song, Episode 2, 139BPM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bfa6b084dbab041c36b348995a590f0ed2d15d0ce981e1c25c1935ddc7ea71. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZWFR2509660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a8357e09b1fb45844faa7c1a55470a23cfcac569b3af123b0396db9ef05c63. 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/QZWFX2545922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f325d37c34e1c3689c570fab227246a3cbef2a1e3d15037cd88e2805d7990bf. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:19:08Z), 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/QZZ7Q2532918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5fdb276339173f3a1d7d0c34989da899cf7cff0226a28bae78057d64674ea2. 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/QT3EX2503315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0795fc5cf871e3ad3bc15abfa4ac7f5615c18387b212951a8ce5756d459122. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QT3F82527418.
Zum Neer Ambus Valley D Chorus On - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b886d9d2942d3cc0f7b87897f21512b0e0c16bb8e13565447494f2e846a055. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1481830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df09cebf2ba244dce6e21b573ef33cd501f112c039a7a0bc592669f359b784c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU1601956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1009d627d75b82f8b094501717669844fe8c0c4eae38fa7b9aceca4dbe2787. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2019387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad39f3f359cdcf953ba2cf2b5010523ca7c958177e03a6ba51ff501277d6e035. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:42:10Z), 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/QZFZ42529492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a8ea9e5567a3bd4abe5a537a7c41f7e5ed4de940d0261d844c29786ab860d7. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CA5KR1829899.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f4ad776f170d900403403c77276e8fb59c23558f998196e292d9fe5de88114. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBKQU2075500.