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 0xdd170b3c9deef4086657095047cac6be81c9197ea0a70e69ac5ec77c27fe912f. 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/c754b100-625c-47ff-8f43-32adf982fe82.json and https://artists.proofprofile.net/proofs/artist/c754b100-625c-47ff-8f43-32adf982fe82.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 0x90d626adacf9d59daf164353e0138295fafb3cadfaaeebcdcb1755e4e757edd0. 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/QZF452065044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b13f248a03793445b3c8d531ed6db119ae609ad3d9f58dfb314d4809fc7c72. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZF452074330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3d18daa13ed9cf8d8efabdc53dfea6ae59e57cc1a487f4951f84c00669fdd4. 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/QZF452062729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f67cd507e810a3cdb2b47de3cdc6b42cea6c896cab2af8fba9a786a7450f2a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:25:26Z), 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/QZF452033109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76dd91b18eac1bb36d1cc8f4db5fcb4820e088f5765c4dcc0d6938c5d5ac97c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZF452053560.
Find Missing Children Pt. 4 'Over the Rainbow'
The Tasty Florida (Original Television Soundtrack) Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc735741b848140414d6784145ab08acbb2fed3f8904c533f28c4e34115fc021. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZEKE2025508.
Behind Cut (Original Television Soundtrack) Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edd1666b3743f9044c1edcba2381e00fe38bebc3a9637270a4dece65df49e9b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:41:58Z), 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/KSA012142472.
Behind Cut (Original Television Soundtrack) Pt.4
Kissable Lips (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb2f488284036e4931201512b739a9922efb48c8f274742888e5bbf7f007f5c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/KSA012144713.
Kissable Lips (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb2f488284036e4931201512b739a9922efb48c8f274742888e5bbf7f007f5c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/KSA012144713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbd26b9b0a538e0d3253747835f978b786098220f7b81e9d07b7068a00e33eb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/KSA012145125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6132763e2714eb220d1bd3b4a30796d48f3346df58e5a99a5c3f34e39d52ff5. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:20:58Z), 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/KSA012145532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223df7c016e116bd27ebd5546c811925f8dcc1fd5ec7fda33d1a0278dcbeaa1f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KSA012145618.
Fighting 4 my dream ('걸스 인 더 케이지' (Original Television Soundtrack) Pt.2)
Oh! My assistant (Original Television Soundtrack) Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9450c73443034ef7517dbfcda26c08cb6f35e76dbf0864cbfba42af8fd14f9d0. 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/KRNAR2232971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af4c90a978c67068f1c4d44ad28a0d500d9a76689e35ab23fd534d1b60f815f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/KRNAR2232968.
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 0x9b3ddb25f696a14b0f487ce4901587482063c6fc41d1e535ef0e21b56224d92c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRNAR2232969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daa865f74462899b4b10f18f4226c34caf4af87baec9ba9247362568da81b6d. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/KRNAR2232970.
ああっ! 僕のアシさま Oh! My assistant オリジナル・サウンドトラック Part.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17d1b4cf66ecda2d27351f5d3090ca512df8736d2254970fe1287d2f286367a. 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/KSB012317552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb566ff726c963e3f06ea93f78b06561aaa4128153a8ffe56873c2fe8d335b478. 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/KSB012330867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60084559cc115238c80ff5d9c3de229d093a54c7469baed99ac770fc91d5d95. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KSB012330868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69910e2f49d1d9461ca3b0ad4412f5defe450ea06dff28caedbaca42c5d86917. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KSB012331602.
ホ食堂~時空を超えた恋のシェフ (Original Television Soundtrack) Pt.1
Heo's Diner (Original Television Soundtrack) Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b6c74c204b7cfafe39065f41e35c2d0f0665e9b8a7c6e4eaeb7bc61ea203fb. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/KRD412500001.