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 0x308e421711a662df05f833fc72d542031e546a5d4222a6ccc9bf89c66d45980f. 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/2c27d2b6-e2a8-47c8-a21b-952263132772.json and https://artists.proofprofile.net/proofs/artist/2c27d2b6-e2a8-47c8-a21b-952263132772.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Team Tomodachi (feat. SOCKS, ¥ellow Bucks, MaRI & DJ RYOW) [Tokai Remix]
チーム友達 (feat. SOCKS, ¥ellow Bucks, MaRI & DJ RYOW) [東海 Remix]
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 0x20f9181a11d4d3ea3bb99f4d335878869f7bf878b6fbce6c3c2ce2b77a85c9a8. 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/TCJPC2479206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf918a2fde1b7443262978585c681c90d05869e0c8ca505cd88eff50042fe752. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPC2479208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdb863bece157b027a5fc90a030da2bb18b61cf48b58c586c1885ed6caa1792. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPC2479209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a92511fd9644ba49e7d055b6982661685b519d669df39779b8486980f9265cf. 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/TCJPC2479213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce48fd36106ef68f1f2818477f7288ad6113afbdfbb38603f2f13f0476b67a5. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPC2479218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747e586a18574e731a5a2b9244b43bd7a45e1c5cf39722ca7242c76c5b53a8bb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TCJPC2479220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f9181a11d4d3ea3bb99f4d335878869f7bf878b6fbce6c3c2ce2b77a85c9a8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:54:49Z), 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/TCJPC2479206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf918a2fde1b7443262978585c681c90d05869e0c8ca505cd88eff50042fe752. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCJPC2479208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a92511fd9644ba49e7d055b6982661685b519d669df39779b8486980f9265cf. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCJPC2479213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747e586a18574e731a5a2b9244b43bd7a45e1c5cf39722ca7242c76c5b53a8bb. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCJPC2479220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8b8af0cea75c3967179451de679a2ef5828bf8df548ee2f001669a9aaf48d2. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCJPC2479214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c30b1a8cd10c558a4c68e0e13d8c880cbf11cf87723cdcbad89c62e95a27ab3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/TCJPE2516294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88e8b1b998a418a24e85cb14a09d8219fc787d83330c3237df486b80a9a8e1c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPE2516307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b5b699055c017f2fdde3a0f6f9d5f84950371ccc95b63826675f2001330ff5. 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/TCJPE2517185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5856bf016d93692963a52f519113ad6ed9dbc025634f6cdf5e03555b33a4bb. 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/TCJPE2517421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b02d8fe50c8f6f05091271141447f596cecf82c521db5f23929b3d30d1d1318. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QT2VB2502246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe125fa79d6ad3ff46487facc54da27f3fae37b87364e9d5057bcd52ecb84c7c1. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCJPH2587073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2af48d09e8ad6f031090443ca8c04e76f69d009234e0a426c320bccb68d396. 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/QT4K52525411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c6cb5f1583a40572c4f4f41632c77311e88e91c7b7ec43aa702d4c04014749. 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/QT4K52525412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc855a78748b7878cb22d71ac40b615f7db10e8fa099eba4964f3f7da6f3fa830. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:28:27Z), 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/QT4K52525415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd947fcd6babceee74f763c31c875bcc5c4d356d6d2af6c21574db3270719a199. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QT4K52525416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3a4f6a752270222e3f2c7033cf77c6a59f8ef43c8f2b466659a6c215546e1c. 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/USAT22405478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f4122342169f337b994b68614aee3e21021518ef0e5065d57ffdc1560e7105. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCJPA2420098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc844fc5d5f288887607f38151376cb605fe4b1cf03c9fa474e165e8509a541e4. 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/TCJPA2420064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c8a6b78945193901e2539f8cc0710eaa4773a1bbc1466626f9dd633d06bc88. 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/TCJPA2420076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a189d9885057913f3352aab89b350263aff2e95f9c0a7cff7012006c0346fe1. 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/TCJPA2420068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b18dadf5f6e6a36b05a3cc36f1b4605cbc3c1e4af37b60f52473d8a1ac4c956. 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/TCJPA2420102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80f78cc980a6b1479b58468f298ca83c549c662bacb46a0c548ffa86b9a3c0d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCJPZ2455123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29383fee8053bba1562de7c8d52b5d28e36b428bc16dc84a22960b485350cd0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCJPZ2402874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bccf2f6fd39de113c397f2898dcde63cd719a206ee791adab03872720836a5. 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/TCJPA2420058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c2b2cc99d103325e45f9c31203ac2c754d67507a8f997bc6192af6a0d95198. 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/TCJPZ2497303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74b0295c1bb595777ba752c6b9f0dfa7d2c0a68ba32c4be445a78b3a22660aa. 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/TCJPA2420036.
Team Tomodachi - BUN B IITIGHT Screwed & Chopped Remix[Screwed by Screw Tight Clicc]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8642e96878526ac08f2e24756ce943ec103ba2f410f546e30189e0e0acd5337. 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/TCJPA2420050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4329688410062eb6cbefca129cbc0691059c758901dd6031dc835b73762627fc. 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/TCJPA2420093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9171a22a04321baeb998e5c692bb1e42c58d0ec41c5754a64da6d83cd53df7. 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/TCJPA2420106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3a4f6a752270222e3f2c7033cf77c6a59f8ef43c8f2b466659a6c215546e1c. 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/USAT22405478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18779b09db3df3eab3e0db4dddaa8dcc1311966d8896fd464b3958336677732. 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/USAT22406963.
Mamushi (feat. Yuki Chiba) [Chopped & Screwed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0a4cbcbe590994228c3c167116c52ee4e4123b0b48ddeb4ce8ca5739ce780b. 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/USAT22406964.
Mamushi (feat. Yuki Chiba) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50697259a8a2f2a63a6a749a128d5f245d2cb9a906df0741d8cf26f117bd6463. 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/USAT22406965.