1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x40bf6da0d341dcdb9935409ed8f114157590cfebeca2dc902cae561d9bd7c0fe. 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/347ba92f-1d76-430f-bcf3-dea69bf6fe91.json and https://artists.proofprofile.net/proofs/artist/347ba92f-1d76-430f-bcf3-dea69bf6fe91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
魔法の音の日本の子供たちによる渡り鳥
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 → block OTSBitcoinBlock must exist at that height 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 0xe68865c8e8a108254c2dd0d5b2bc412b03b1c29326ddee23623b7475feee6656. 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/QZDA72571613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951889ee29d0202b9ed3a844e6796e0d40d303322930f66b05cec1c01582c1a4. 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/QZDA72571618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd877b085c119f4eac8a66d5fe98b035b165db6f0441cd69e73f5d1762d44f17. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZDA72571621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d60bb1037abe4b08b813cf417e52bd01eea7b34562bb4a8777833d2c70c2ce0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:57:17Z), 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/QZHN32568609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4986866949f0ad6ba96d0578a835de13e146853b4fdb4aa0d3e5a27bfb56886c. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZHN32568610.
A Story of The Migratory Birds - Rock it - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9a51246b6c819f44b8d26d8bdea817927bf7c6d1e00be15d7dd5e60c1ffa86. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:15:35Z), 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/QZK6M2596702.
Smile - Cheer Up - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9f88933f169184a91ed3d8b319afdab7139bb7b2d498faefe661f60a2ce5e0. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZK6M2596703.
Forget Not - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9243f13d2b6de5a9c1c243bc0ed1225b28c919ffecbc9c48d18d6a8543b901d8. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZK6M2596704.
Time - Rock to Love - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46e58880a97f9b4b5af1e074dc4cc5723beef9aa99f18010424b3eb59ed4a4c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZK6M2596705.
Destroy - Re - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f004e97087ddc0a7bd1f01e8270a13f279e3da55526f4e9cac89c9c3efa01b1. 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/QZK6M2596706.
The Sound of HeartBeat - Heart Beating - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6f286cb3aee44cee16fe08b56956b33e61d7b1437751697df67864ee1a1111. 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/QZK6M2596707.
The Promised Land - Rock for - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff56758f389eb44236fee1a366ffcfe745d6385b420203e4e84f191718e5714. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZK6M2596709.
Her Time - She - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda43a75a8bdd6ba6afb5758f25415bb666ab21e1475e38e6f6bcd5acc586a8f8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZK6M2596710.
His Time - He - Instrumental Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bac99dac1532334e038322bdc5eeb0938c24d255bd3d709d4bea50db868d7d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZK6M2596711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb16c8e2f839f79c798debc136a83d656fa7c23f1b9ce6bcaccfe38e8418b71d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWQ2548143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd877b085c119f4eac8a66d5fe98b035b165db6f0441cd69e73f5d1762d44f17. 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/QZDA72571621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0159fb4ef5f70f458fe8e0daba87269f7a94808a369468c78a74c495d079b8e3. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/QZPLS2402600.
Instrumental Special Vol.2 Silent Awakening SIDE CHENGYIN
Instrumental Special Vol.3 Silent Awakening SIDE LINGYING
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e8d389972ef050c8590a39b5b3292909f3610228605e8e1e8ae986bd4a45ef. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZZ7T2574390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b336f3df362bb377df572fd6a282120d5185d93a050b709d0db2c28254eb36c. 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/QZZ7T2574391.
The Migratory Bird - The Other Side Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4702dc56eaeb96b1f0d789e4a8162d769e0555e601925a9633f04a1dc929a9c. 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/QZZ7T2574392.
The Migratory Bird - Instrumental Burning Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8841c646e93caacddd3ab16336ec265ff0dbdd681990a7c37ee879e6bde25fff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZZ7T2574393.
The Migratory Bird - Instrumental The Other Side Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87022498063e4469c023bf55c8659dc692595365cbaa48b01b65f73b48cb640f. 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/QZZ7T2574395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2e4609b150d943460ac00bb3c6a231e417fa36d763615baf956ba91d8411b4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ7U2593483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc97d8dd27a0e8ef642fbfee746cb06f88efd9302594ab6e95b2ecd8664a0ec. 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/QZZ7U2593484.
樂土 - Shout in Unison Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244af604c299a8c82b21a797a2faa6d9a49064b0465eb1c0970fff9f0349cc16. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:49:54Z), 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/QZZ7U2593485.