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 0xbad9b36b9993c8a632c93d9be4f9a9eef3db341c8a5b83bed6fd80729bdb78b6. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02a78759-954b-4f4b-b447-a4ff0ebee153.json and https://artists.proofprofile.net/proofs/artist/02a78759-954b-4f4b-b447-a4ff0ebee153.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 0xf16c0144f8afa9d2e45ef89e7fc3865be1dbf3194603e947e20692375050e480. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKE022211422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc908cbe24775a74dbe8b84412fa9d13a339bc03ea7b402a52fc8cbc5b9a32cea. 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/HKE022211424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e216953ca80a6851e1671822574f3eb426d634cfd3bd13eec250dbd97962b8. 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/HKE022211425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776262ce29cc64a437b804f5304598821937da7f2a03243dbeff118691d5c47b. 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/HKE022211426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e78c2ba7c182aa49bb341d571ffe51e5224d1f2a3e571c322e8ed5a03e8c7ff. 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/HKE022211427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7ea4b3867cdd2a297081d97fa4ab96aacbead569689f56ac59e1366077fb74. 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/HKE022211428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e231c07b3a6e78c2540b4411df287d21cce44bd1dda07da4aaabbbf1605b32. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CNZ852314360.
沒有人能夠比我們更接近對方 - 现场
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39c575e4c51f54d76070b1bc6269a9f94f85ea7406dd05a41e0393cc12e9bb6. 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/CNZ852314359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa978a1c48011471a8afae6eb4bdf74d2f4ade2f26e38c9dc4e731448adbc3d27. 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/CNZ852314358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03989c59f39f8ec6b4b8dbb849a15b458cc95eacfb16a3c5a3a572c451413ba7. 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/CNZ852314365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038edd346bbec58cd141d6224c8ce2cae90674b203909abf25de1833aee250f6. 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/CNZ852314357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12884fc3f07b9043362d3d360ed04c803f00babd07200dcb1fcb47141d9a9ff. 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/CNZ852314354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7924cc1e79863aeda9b54794144879d773b53701bf4b5985d888dab52cdbd4. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CNZ852314366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec50ea3c8d40be364a4fb4968dee4d499db52fc317f181b442243f96c2d3bd6b. 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/HKC371701596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb15afd74a882854f84c6efac99df8aa4947bda02a63a4b75b0dfb8ff75e1b1. 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/HKC371701601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcefd9170426fb12d86e66320027a594758cde67cb32a81fb14283ab5516b334. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/HKC371701599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b04083e49ee2f08e9cd8841371c4051f4c862ee74b4516ce63b0a94596d4d0. 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/CNA231402193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4217f194c02ae8ea64720bbadfd94b07b9ed457ffcb95f24cf9dd5821a2c3e5f. 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/CNA231402184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30e564763be30801f58b16ddd2e015d958fc4edaa5312f5309ee17e6ba9bf71. 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/CNA231402218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43334319fabe4e581ca18c6173ee81e855a4daa3d03bc0614898d55c644de29a. 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/CNA231402188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d93a13418bcdfa41fbf008d6935cfdfdc13fee68734c774d5aeede2b8bfe28. 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/CNA231302216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992b4bec9c03f089b0e8a18cdd711355c88fe3848ad0fceddb910f14ffade8c6. 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/CNA231402206.
我愛你親愛的姑娘 (電影《瘋狂的石頭》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bcf7609e8129e83e33e90928077088f97b1c1a5e58b221bd0bec62dc34f498. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CNA231402209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4615d3cc0814ee0f195a13b827aa687a6ee851916edd63ea6887ee9c13552c. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/CNA231402207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521bddd46944fe9bd02938f7f0a0533950abf2096a61517d65c96f912975b188. 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/USECL0500501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6238e3f96d2b30c87cca1559a2df4d4fe8044e7fe31725f1ef0190e1724cb273. 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/CNZ852314784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a8254d0304d21b557b8e3ce37ebee7d189e71d70b73dd6219354f6f918fcf. 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/CNZ852315123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf39718171861b8aacc5f3f39f06cd5c4fc92d3fee4ce0cd837c14431ceec6a. 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/CNZ852315142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76662dc8430285e6fab57fa1606626294bc8c7c61e7159091af1633d08d4d437. 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/CNZ852315144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0139267c2176d7715c84dfbe7bae35626500bee61b397a2c2c6997ce769cab11. 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/CNZ852315168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad2bb729bb8108a5d189c83e369f3ebb17d049337622811b1073a0faee35b9b. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/CNZ852315160.