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 0xbd0d014f0c011f66bb6bba67b358f27e57cdf48663f192e6020b7107fcc9e9bd. 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/61209b52-c928-448f-9f9a-036892850a39.json and https://artists.proofprofile.net/proofs/artist/61209b52-c928-448f-9f9a-036892850a39.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 0xaadda49e1695086c9f044a67a103edaff3a3b8cc1ec1a0da7f72219b05362a10. 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/QM4DW1693105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274707fd71017ad46855b26eae6a427477997b121120a5bc31286c734f2f4661. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4DW1693110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e94e4c7420a5cca6ef1438ddab295ff39d074a0015d7a8a5014aae9dedc283. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:41:28Z), 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/QM4DW1693112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fee90f24dff58a13a28ef0e05e769189096f5a40c9d518df9471c6c2872603. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:01:23Z), 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/QM4DW1801676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d46120271dbf2faaef23b485167fd5c2103c5e05d08d4cbc9d9b369e930601. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM4DW1801677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e39a509db013bc33d4d47dca28a3d5f9d7df8e580725b8df045c0949e889c0e. 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/QM4DW1801683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e171be8875861d88257a892301b2ce9be7ee1f5347d1a3c9b6e548d0a7b834e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM4DW1801685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd224481e0190382b9446eb5c07020976efe5eecd7e0ab30af9af786c62bc9d. 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/QZNWT2191481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c95ce3abc2889598360b8f20a54ac85106350a0a0d39e9a2b982e581f8ea4f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:36Z), 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/QZNWT2191482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4724d103d3423a2c1509dd15ee19a9e7c314fed57bc29a1db0424d6db2df3a. 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/QZNWT2191483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffcb04254dfb017789a037a68c24fcac0b6308c11b95be169db15a12d7683eb. 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/QZNWT2191485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fed03778a44ec26853212539323dd03af8f6beae9468b2e67b93635465d650. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNWT2191486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954c19e144a98ae5ec9f1900635facf8ffa55a6ddc0b7d3df38bb0170ae872a9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNWT2191487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa4028d5bf85fd857218eb8be5cd3296e315b263fbf196f7f8c2cc3340c14c1. 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/QZNWT2191488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b6431c448cc0f0b37c5b38ccca232148edeef115c77e0ea58bc7dbb3fe0905. 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/QZNWT2191489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ac0775dd742327ec1ce04aec6f97fe89386d6d5a70dad2d8ed3f6008482d7e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:43:46Z), 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/QZNWT2191490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fc86a8df18e7a1f6527986b4af3592333b1ae8ae5c002a8ab471330e5e5db3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZNWT2191491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08857cdafed814ecb6c732d2d1f621d8098b4176b00c9eb3871f3cbae0623071. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZDA82222215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c901250f2257b8e8d919568ab83c246874f1fb2cdf9baee6e9851ed749e375b. 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/QZTAW2356042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999e09227f96b777c8e06312eebf876948aa40180502ec81f98528cef0d57bc2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTB52363763.
エビチャーハン! (You’re Telling Me A SHRIMP Fried This Rice?!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ee4d6c6f145e030a9cf8afd073ca6ffeff23b2a2e426de3ffb6d009635de85. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:54:37Z), 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/QZTAX2591821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7691dea8fd1c44bf9e13c8d747c66794a0517c67acd4a5ccee4c1fc37737f57b. 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/QZPJ32342607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84517420336230f91849f77023797f20ceb9e8eb7e66b3fb5b959815b3067924. 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/QZPJ32342608.