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 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 0x0887af2adfd4d4cbe96aef97813ce3ff782f3af2b50f2b68763f5b25f79a723f. 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/2e4e8f3f-f4b4-4a11-9f68-4e93f1c241e9.json and https://artists.proofprofile.net/proofs/artist/2e4e8f3f-f4b4-4a11-9f68-4e93f1c241e9.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 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 0xb60a989b8fb7a859b19ad5ddd0c9fec255901362d3e089ffd492617b515b7638. 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/QT2VB2472009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013cd42df6041b0adac85b40949812e5891ea5a1bd724b299ed3954f13417b3f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QT2VB2472007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3c5c748e6f0cc019c75b4d80912daa9ea620beb548654189b5ecb19856fe64. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QT2VB2472008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5331d5191c18958e352d7f020b6139b02a17973a5f73ecc4d9915de9cc055142. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QT2VB2490181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59aa017817724d4caa32a5fe047beb8f9fef6a46153406989921bb0f4b394ed. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QT2VB2494011.
Hitmaker Da Putaria (super/sped up/slowed TikTok Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a537d183efb1f4a2d2cadb8e06ca7d31ec3ae79ad5739ebebd0d4e2a1e6ab48. 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/QZVEM1817388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95b31433c907959e3900ddbbf675376abba7a8a0c4f1fa91a102c580f17a2fb. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZVEM1817389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc26375642ea3f1eca7db0c8f3db5634a4f70a8b3f7d040acca461b8b82b85dc. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZVEM1835555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418aa8e01cfd8678ceb879451c11e7245870ed747bb0fabddbf768eaa98e64f0. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZVEM1868085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f290ec62f369aba4ea3b1ba2a36cd4bb66a58b2cfbb68e9d4fce91ed73c5f4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZVEM1866804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f63543760b438cd900fb8a0331754a717452081d087e5d307afc47ef641d9e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZVEM1866805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacf27c16c6e8be49eefad793cd6b87ca45c4b199fc9f7d4336d00f4321942d1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVEM1866806.
mayonaka no door / stay with me (sped up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe1d40baa0a34ac468b4172a10451402ed46331f0683a7ad3c6558dd6bb7b6b. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZVEM1885688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646576c7d6a70f8f85e83d6201c1e0d628154caf0650b1e23b1ff3f711a49c25. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:09:46Z), 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/QZVEM1885689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80eb1c38703265dcf02e014f4c7b104e061c5125d56472cfc45225f2d59b5c2f. 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/QZVEM1885693.
pink lemonade (hood trap sped up/super/super+)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451388faadb29b51c47937da23ac2876f3372e5f041f24ba9b8a9871718fdb1f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZPEW2545234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27165d8a4f17e1cd35101ac1624394466024c459b92d45000427fdc056faf6b3. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:39:16Z), 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/QZPEW2545235.