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 0x4c3c969428a53cb811593b6361a49ab51161903c136712a3b99ab7f39733a67c. 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/121f6b0f-fbee-47c4-8bcb-767d7788f2ef.json and https://artists.proofprofile.net/proofs/artist/121f6b0f-fbee-47c4-8bcb-767d7788f2ef.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 0xdcad80e91152f49bd38139c3c7cc0872071b08cf6bf370345627fd99331bf753. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/FRX452255827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd94c90ac0e874f76eb68cadba34218734b51a69db05eeffce097de02c6cd2e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/FRX872218993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa6fd43090404cba44370041b6292d0db2c52601dd72844b67c8bf5a0b09577. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:06:08Z), 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/FRX452288418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb287d28706e80b6d29a20fbeb00cfe4215d574b867664bc375851837f2975b5c. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:12:46Z), 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/FRX452288419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de6943b6643ad1478f95a3bc11c4ef6845bf641ffc1d87f6bd85a0a520eaffc. 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/FR2X42221982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec3d8e02bcb35eb0d468dcded44866b2c5fcc0b9a7323f9630161de2682c6a8. 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/FRX762205086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45bb9f5a9aae269ed9c3aefc3eae64faad4aa93aea5d26a3e547b6b65fe0a98. 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/FRX872289628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07ed2438d445614cc153937f4e8846ab7d467c73f878cfadb44c3e858aa7961. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR2X42214047.
十二生肖礼品宝盒 (08献给属虎的小朋友)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5559f50e84bf99167708ecc9bb84fea0cd43bbfb5804c09b93ac3d7f12b0de29. 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/FRX762204489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c657145814a672280b46d28116ae00890ba7dd5a8b8cf2c6c871ccc88b5574. 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/FRX762175053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670818cc5c33476dafc3053cdf6aee2b309fd126162f23b2bbd7cae1e8ffd051. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:04Z), 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/FR2X42213760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cc6a6a088512d580f65a3d59f911f661cac492e4617ad60dde3686c0b7c8a4. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FR2X42213761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac59c01acae97434f855eba32f0b83a3a32309a096dce891f4cb5c305352f38. 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/FR2X42213762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f60b9236f017b18361694bab2f223ec25e9e7d3d7eafaa6b1c0479b0b0118a. 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/FR2X42213764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1aed58bb22716ef880b3abb16b77661beb1053237360b4dc810e717627239c. 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/FR2X42213765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaa0ada104965a1c4a203bda9ab99f3535bf622b42ef3cf73607d5711781b6c. 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/FR2X42213766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691a31baad06eed6e6a95a88a5894db29b46acb6ddd7a764035dd39bf75b07cd. 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/FR2X42213767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28786c735bf60f6d51b7172a786509476fabd3f365a2e4bf82d9bfb97a595105. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR2X42213769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a40cd7c496b617b7bb662d7b8b3f1b66369afb3e7e6ca10ed758fea622b9971. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), 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/FR2X42213772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639e250a18aa57edd6e30caaddc9cd9e200c22596d5d07060d4a094839fa1230. 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/FR2X42213773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e050ad4d775c84d9f987eaef3f687c00c16e0e4a3fcdc951346c53dfebe160. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR2X42213774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089c1fcfe2f93afb7543d19be11fec33ad3524fa57822965d833174626cf23fc. 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/FR2X42213732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e706006f0595f8fee1f67b0b30262d8159a00588343c183a8c8cac8fa254813. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR2X42213733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ac8961a59975a88e02ad042d2338e2d8f246003cae760ea9973beabdf1ff48. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/FRX452290456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6234f9d7bd3a324b0061bd60ddb73b270d8f471a031da9606f176429bf0fb58a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR2X42211673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbe23135dc9a9577a62e42a63826f8da3e437dd23a7ef430f803f8e827dce75. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FRX872102621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9085e9aa389cee0365a4fe1504b9869988a762adc2d02d43dd976c2822b0947. 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/FRX872102635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d6b01e66ae903a78cedde3a2849fd5f602df01afc590f3c685cd8f01aded09. 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/FR96X2230866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0087b89c243cb2017870402ed0a1a6838b32dc8e87ed9606c88ea8f16837f15. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:01:22Z), 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/FR2X42211364.
中国儿歌曲库, Vol. 61: 儿歌爷爷吴颂今作品
中国儿歌曲库, Vol. 60: 儿歌爷爷吴颂今作品
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