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 0x0c7c6f2d7bcb9d5b3171055c7cae0ed8e4155a1366842933c3d31ae51986fdf0. 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/d2ce4fea-3fa3-4e10-87dc-0c5d16acc6ac.json and https://artists.proofprofile.net/proofs/artist/d2ce4fea-3fa3-4e10-87dc-0c5d16acc6ac.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 0x94b55123a1766fa99d71c3b95d369759b598e9c7ded1d378a1d1a18c43cf3d29. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWZ051701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a56fa50889b37ca1cdd7076141f92a01fe58b64db8a2fbeeb64d67269ae69d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TWZ051701005.
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 0xcd58a6aecb77b248fe99f1c79e2c7a8eb423614f654c689ac8a04973c9ad9bc2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TWZ051701007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937152c9da58392ed2e2463baca1972f4e545b6117e303d910b778bf1de1d4a7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWC150508003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6598faca3db9380b4fdfd319a0623dd3b0bb07f6e9ca450bcc84e9403deafc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWC150508004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812ca72a5f4c99f8fc7407014144f30900dd6233564e549c045b738da2fbd100. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWC150508005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8efbb6f50652803598e2a8e93e667e0928ac9076a4283a0eec700e6cd8503e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWC150508006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec566500d604f922e62c6fd2c5d291a0e26598c1c044317599981f677c8afb7e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWC150508007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6961f0fc4aff2bccaddc912595b1d36c3d27cdaa2785bcaa6c7ca7e733649688. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWC150508002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a152dee39bc7135ed43ef22f2d97487fca699c5182b0478394a8564377c158. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWC150508008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2d498ffc1d69e9ed11d65c0237fdeea5da8ee0867e1413daa4f6b457ab01ae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWA451099603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233d33204a536a264488113a8219df3d4e4b100a12378974bced85b711bbe77a. 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/TWA451099604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daec15407c8ae284a64ec59fa0598bc0eca64090eee9d3a09ff37268ce01270. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWA451099605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606cf542494ef088a8e65787d3a3a6662a8f8be171e52e38a351acd98b3574ec. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TWA451099602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a45a54d6ca95c4beaaab8d928fbca95d0b956dacf82d13682a4a39082db9f5e. 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/TWA450996801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e16cd5cf277c2e5ec7457472a05f772fd77a689ad937601482dd64cffe29ef7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWA450996802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f941c7184076f70863103f6eb6c54f3d0b218850a152a461d9659f12b0e685f. 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/TWA450480801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf39508eaf53e6213b7d02f14077c04c66201c1f57eafa365919bdf3a9e56e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWA450892204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f12da16ebd5273add1b27e435321c61c6541d939f19cf47bae04aff4827539. 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/TWA450892201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb96a9066cbb318749a29787e34e98c55c36acfacc7a43c64bc81ff082800c2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWA450688901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c0a2001460ce419040d32e4b0d2db9e20d1d2a5b4bee6d87944cbd8af385ee. 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/TWA450790801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08208237d10bc11a00c53842da359d1ade2d4b99f25f11d04bae6357b276d2a8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWA450688903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382e0d62b54314a60650a46c43a55b3b1bec7bff52ad48b18cc35b83f54457c7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWA450996805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722731d10455ad41bb4bc3fe9843ba911d1aa3c89840b2e2b4aa90f8b6bc91da. 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/TWA450893601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee94d3cc587fa5d7a6e8b0694a1f4458621903177c6e0a1ca96bdd2e6c161c0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TWA450688906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5042c51b448e9e2aec4ce57fa5d4317d15bda50c36123d5d9b60e808fdd88d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWA450790802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5effd1ec4015db4edd565376190ef51f3736bc09717365bd447a99079b0c3088. 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/TWA450688910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb0e3ca34ff421d59c2e2931e7e043624d49173f8e9fe66913dc83408805d2f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWA450893602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90503c4c897bba320434e41e2ef92b726062729a9fcb5fe6e16ca37304d8bc36. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TWA450893604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba31f916076f125bf5d5d66962e4a27790682400c6177157f3299c0d9fbbda3e. 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/TWA450717891.
命中註定最犀利 影視主題曲給力大合輯
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0114ea87bfc01b6f6ba11fdea925041682b95200f28b397d6a2f84df0131f5e6. 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/TWA451102912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611e46900ba27d69984604feb3dc1b2ccb4f6c0cc71982f788d52f54996d93f0. 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/TWA450892102.