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 0xcdb8da4b6d6991e355eb0d77bdef5b0a6bd94931f7ea2c7c4d278cb9a4522d95. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7a4f8d8-41b2-45f2-ad37-b67d35b7bdcf.json and https://artists.proofprofile.net/proofs/artist/b7a4f8d8-41b2-45f2-ad37-b67d35b7bdcf.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 0x21913d6dfe5d6a5a8bf487138106b446f275f436a0c8b6fd64df48fe18c64e6b. 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/FR10S2134729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474c30e35303b27ef2753508b1ca79d275b508463e7bc058afe079a563d60955. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2134731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf68874819077e9ddc3e0866ee6658ea6a8798d42941394a8306717e3dff3eb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2134732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b949ae33928368c272bf59e222db0f2149d83d0cc8d688e78c34176a82d9691. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S2134735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50de98977d2e749f5af4db9da2935d193d2c76c7882789adc148514e01863726. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2134736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a2e03e38a9304f00359515c6595d32f3725e2ce7ef1d71314e2f591775ecf6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR10S2146299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b8a83a8f0ce7ad6daddc219412a589e925e1b8bf4ae84618b7bbc16a89136c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2146300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc3afbe4c1de4769c3e7ab028904c9ebdd33e71eee8b93397d629f5e0b12c2b. 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/FR10S2146302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da5cbb480f76ed2df426801fed93cfe3c3c75f2ab85d02a1ebb475103ed8ac4. 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/FR10S2146304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a25e6b5bcca9115edf135a6dd266ec87a957f3168182c4a28d7fd16a7869a3. 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/FR10S2146305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153481d35bbbb564d8f1cdf1b305163def63aa6740f3de7b2f1df7bcd2e5bce7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2146306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f5622c65211f3201cccf0d6712555c950c410ac50a74f09df2bee4a53a3ee4. 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/FR10S2146307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdbc821f69e86799d582ad64c0a177bab999a0d9da1173d7e3243f235ab8977. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR10S2146308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d72694407a1e6df125bd2f67f6cc3312758e6e7294511482a72bb3a326c947. 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/FR10S2146309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7caea9ffabea6089a97c6dd5770101c167ad34ab164a6a1ce12da8b9eafa097d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2146312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d08b341517d79a50387585a46e0bbc225d24e12d7a0c8dafec409451b1f8a7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2146313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32d1cc9bd95debff1fddac86401549d257ca924df2af03dcd54dd116c04b22d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR10S2146314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8c93fb7595dfc2425b58a003c6278d30a9dacf2470cd86aba8fc6466697833. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2146349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0110fd5ed10d0cbb509e85cf5f74fd8770bf4bf85d37f4f61d5f82402bbe54. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FR10S2146350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c439e4732af309f64dac6b42cc97a9d1407754b2a1589a542786cb0b4d63dd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2146351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c34cf483a940e1efacbb7c34a1ff00f3a1a408ada1e38fb1107bae6541611db. 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/FR10S2146353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14089c1bf5d01284faa378c4442f70391b7f3a2bb19bbe1a289f6a2fae1175d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2146355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855d6f4ca1403041d817fa2c6068fc88d962b37cb258adc36a1fda73fd098985. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2147511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e4eb7205ebe3a6b6bfec777ac2e8a0e2239d15678e4d4fca791b678cc848da. 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/FR10S2147513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771eea662af74356b495ecbf1c8c31f8ff48bed1f6db64fedda60db188ec5911. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2147514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4be341cb9ccd7c1f925b65ec249b5831e3723abf26379854e0a7d6a64ecf3f7. 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/FR10S2147515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80976e5a427ce3a45c95b1b9852f99c627eaac28300464384e7dfebc9cfb09e3. 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/TWCT51717788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21913d6dfe5d6a5a8bf487138106b446f275f436a0c8b6fd64df48fe18c64e6b. 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/FR10S2134729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3030ea884c2c6169394dd764c1c1a9cacf756103a5d9bf49259c1a5389750866. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S2134730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474c30e35303b27ef2753508b1ca79d275b508463e7bc058afe079a563d60955. 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/FR10S2134731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf68874819077e9ddc3e0866ee6658ea6a8798d42941394a8306717e3dff3eb. 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/FR10S2134732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2f21d8ae420bfe77afb5b5a712aad1a0f4b98977605e371cf2827568af72a6. 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/FR10S2134734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b949ae33928368c272bf59e222db0f2149d83d0cc8d688e78c34176a82d9691. 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/FR10S2134735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50de98977d2e749f5af4db9da2935d193d2c76c7882789adc148514e01863726. 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/FR10S2134736.
歌手·当打之年 (第十一期·终极突围赛 Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce737f4621568a0c20d4efc06dc264800ef2a76e8a3fac9b43cb80b7cc76f5e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:38:42Z), 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/FR10S2163174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda282666b56489934f63082cbdbbc261a311783d398161469cf32c9f611788c6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2163175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705f20a66c7ddf102f6c4076363ef2861258866ab8c8a34841130a080becd2ee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2163177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1855336eab6bc663e05cf682c74330b60e46996735e8bbe6475d5b0262c18d16. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR10S2163179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c46ff4ee8014629a68b84a268bba40fb9bd88c7e42e5aad2dd821ed46a84c27. 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/FR10S2163180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cd1227870d831533d6e70ae92fd980faf268caba7d0b9e67f9234f3c4b8cba. 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/FR10S2163181.