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 0x02d4b9ad20c4c59bc0f2c5f40f0ba4bd13370ab18a6aca292fbcdf9fd9050c1b. 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/f1787886-ab1d-45ee-8caf-629058a3c6ce.json and https://artists.proofprofile.net/proofs/artist/f1787886-ab1d-45ee-8caf-629058a3c6ce.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 0x725d840d3c70e98c0507a7c981805c0d2b99e0ff1720a41920743b3d9378f040. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TWE210207011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae283d34fe877245a5e57e1d4b78cf3d3648c8a710e0b3ad2defbf5b40ff9f2a. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/TWE210207031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72edad0c7b3f9b4b1d9e9bd00da38cced5c7d557b755812b05490cf23a69afda. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TWE210207051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da1ec596d8a5513ca9566cc01fbeae7fd5c0587315d9eda4ac16587bfd65213. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:47Z), 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/TWE210207061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c810cf6f52f1925bc6dce67bb5d39ebd0756500fa43914c0688a3f99882085. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TWE210207071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd693f400ab91eae47a6729dfe5cdd0db33ecacffcccd16307975d6e5b4be759a. 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/TWE210207081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe495092f1b558eec048e7339a6cdd1a4ef6df478fe41b906943d522e79beb20c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TWE210207091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eff1cdc7231002c1914c55e8823303b215ba70322679b10f9f98b1ce7d2d6d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:10:11Z), 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/TWE210207101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ed0e952cd7d16cb5b4ff49b66cf61e4ef27d8e1fb59138594d55cb1cb38ab1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TWE210207111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc9181a388fba60cae7292703ae12441f6b42b145c930df75ee17a09e391222. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TWE210207121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e48159dac92219799bc3739cdf454f54b436beb25c8ae2ea2875fabfd475c2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TWE210207131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98aefb92821e0d041f83a2a747652dc11b818821d09a56a3c8d01a1ee29ebfb7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TWV271300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58696325697b56ba6d5cb94130640ab16b0ea704786f57ac4662b3cfaf5754d. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/TWV271300509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771635af559884bef977b887fbdcd1689d59d837a92362be47f340600a80cd3d. 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/QMDA71363994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7970d9d6b0741f9e7a536e23e3ccbc063bbd4c01fb090f224b78d31620b34a20. 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/TWQ751900010.
烏牛欄大護法 - 望天版 Millennia’s Faith Undone - The Aeon's Wraith Version feat.何欣穗 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4f2fc33a2a15e43ae1906507915c854ae7feaaf68d7f4bd41fa0e01fca5def. 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/TWT442005010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97299a98f17879923c2e3bc47de4e8e754edbe6f06763e280158a338318d6628. 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/TWV271703001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46462a14228a9308255d8620c274b882ebf483dc2a766902996c1d275d80aa37. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMDA71363967.
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 0x882ac897f5339de39e16a12a42b8fb16909bbe653f35d1e5bd1a36ea48f0518e. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/TW2150820001.