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 0x2d37505b61f46c90b462be68485c7190fe9b98675552e1c17a6600b2f7200b35. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c8a84fa-f73a-4dd9-b56b-8bdcdb7afc69.json and https://artists.proofprofile.net/proofs/artist/6c8a84fa-f73a-4dd9-b56b-8bdcdb7afc69.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 0x89bcb1a00ab68c17a94ed7858a66e0b7d43544e3be6cc2698bd23026709db84d. 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/JPV500701127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b462874a18230a973c68c69bb0eea2d0a9e577da1a11beb6d745d3081074cdd. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:48:25Z), 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/JPV500701130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fba2c63245e9482fb3a82f1f7bc5e99f86af58e82f403d957353e46ce0ea201. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPV500701131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81ab99ed70b015b4ea990ea57e941c8a3db208557f33272fef81872d2845b6d. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T09:00:46Z), 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/JPV500903065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe59e13ab522dcffa3ac85a589ea9dcb1383de5002c5bd5dceea51a0de273b64. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:19:09Z), 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/JPV500902541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e552196499b0b9018b4cabc10106a12e1637eb29476e09fa5addd3c58c20d1a. 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/JPM251100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb2d3554c1807c05181c417b3efa8ca83c4427c02f0a737b8944e30d93472ba. 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/JPM251000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59352c0f5ca40bc04a2c866e1df492cf0324b0033845df36521fb0622272c578. 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/JPM251100048.
ADVISE -最悪ノ事態 Riddim- c/w アドバイス -喉仏 Riddim-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525a103b0d812c17d4d48393fc9e3073884bd8583bb662aa9bc9c81dfec5701c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:31:31Z), 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/JPV501300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368f479897f1fec29dc07241869b819c9091ea3bdbf111896a2742b960567802. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:23Z), 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/JPV501300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7f220b06e9428a09e8a781e7316e0e9865238a2f06728499a71e6045bea641. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:51:26Z), 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/TCJPE1636327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd23c2ed0078b8d22f5bbd813e9b87677dbff4d31ca4557514af57e6d1f4512. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/JPH491901106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0ae37e07e7f8d8d924d5369494f8a1040359d9d35b94434e732f026788dd60. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPK2070655.
アラケンの大冒険 ～2021年宇宙の旅～ (feat. たなけん)
Araken No Daibouken -2021 Nen Uchuu No Tabi- (feat. TANAKEN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8937aeaafd913593c70e505ab31a8c901e1a136bd0d9b0306d3a231cb9cea0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPR2222377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb96a5964c0ebc3fb8225642c27402ab94bf0036dbbbdfa125f269772fe9e853. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCJPR2222511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bf609ebfacdb5791863dce37c8c92638153a97276350e3cba237178a046fd0. 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/TCJPR2222607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dd6bb1e4bb07967fff2c2ac986ef70b243ddc35cd360ae1567131bb18d5331. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/TCJPS2222062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5aab8c645cfb3b0f52309d0fe30f44c0f326190fa84f97dfd1a4593b5e29cf. 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/TCJPS2222078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac95eed48bec143ac19ac496fcb0f1682175f05e1b61c6656fa8775d15540636. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:30:38Z), 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/TCJPS2222080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a37bc6744be9b4333c371ef2aa5acfb7b477bb47f4ae14bd3f10639c9a9361b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCJPS2222083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41efdf3480548103bcb67a95020c40a5423f549ac46ced87b3fef6457942fd50. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TCJPF2522058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82390525cc823b790faf3f2f460f16dca0ea11e08421db99daf1ae798c89f4b5. 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/JPPO02403488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d3f3b2b510102f94f0bbe11f60531f93c52e5bf9d5e39909d0bfc5076abace. 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/JPTO00600653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8756c111657b094145221346df4bcfdbf702261a7abe714edcd82a8abdf5d15. 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/JPTO00600660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281ae6e743aa60e59b268fa8276ec6d42a786540faae7d00e248a8fe72348759. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/PLD641900034.
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