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 0xb05ce34b7ef1efe5a30b7f2dd9bc9070d77ccfb5aa746c6e04a80bda94effc80. 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/57273474-d0b3-488c-814b-7684a87f42dd.json and https://artists.proofprofile.net/proofs/artist/57273474-d0b3-488c-814b-7684a87f42dd.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 0x092f3fc41284e7b4295a74fab425939c34a211b898f2134fc6237fac69802d02. 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/CNA231402071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86937b0aad943ea460846fc308e66a2826549749438ef7d1a9890571ee0e59a1. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/CNA231402079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af9971b07b87e24d8b6919b8faa3f00ebeacc779ef176faa42cf10f9792ad6b. 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/CNA231402073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2b56379fbf642ae963bfb8ae88801a13281ac8e5c46c47937b5632e7e576be. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/CNA231402075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bd11824ed4282109c21aa0331601bb556e6510155b9b2a0200448f63368524. 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/CNA231402078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d183c0d37302f089e8e37c1eaf0fc80077d68bcc55748cc94fbaecce15e56c7. 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/CNA231402081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a20864890ea226a32fffde9c123d5642506fd0f3f39ab882f90c9623a2753c5. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/CNA231402072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b5b6a8213a6d8f8dd6f128637d1c2d7006b17756da357bf2373a0d696fcf1e. 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/CNA231402076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde875bed3740a80f7b7b89861eef5e354e506b19c9b79caec5c0e29dd659d56a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CNA231402077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31805ad5db3ad559d3ac2c89c25a2cd5cbb8066a327add15f8f5c2c460347982. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/CN2DY2500496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b8a0096140f08b464adc3c99dac31aa8559f232dc08666b0e9f02e3ed5ebc6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CN2DY2500521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc9ae96c81987fa9827918af2bc77080acc65a05728a85151bf52ce0e5b5fab. 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/TWD252051259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd715d38c6f782dff477745ea13ef30372cb6de4ec0f9ac662852318feb6915d6. 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/TWU712101749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b7b4b53d61caa525ff2f9b36872ef336f8d39e5aafc06daa92afcb3ffe66ae. 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/HKG732155885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac485c5bb96c66eb5cb51e9defed189f72023f0e6a3ce12e89e8a5c3a1fe590. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CNZ682300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905f5f746fa2239d8fddf0ed1a0930c30bb7a6f7695987915016008f354da81c. 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/HKG732128654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fed32e1a9a97f596435380efed0ba9607543e90a72ddb7adfbb209d66e5ca1. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DGA082358345.
無畏 (電視劇《以家人之名》片頭主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef36fabbe49017a5792708fb134c06938cb0772a27720425e2bdf7a40e9af5c1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU712003226.
無畏 (電視劇《以家人之名》片頭主題曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec8c26bc4022888bdbcf4ab3cdb91d514971417bc6ceaf33d5e3046083861ef. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TWU712003233.
來年今日秋 (電視劇《古董局中局之掠寶清單》插曲)
電視劇《古董局中局之掠寶清單》原聲帶
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178d726edc7a14dc319d8b39d8ffc09b76a75178b4b98743b89315b927d2887f. 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/TWU712102952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b253d13bcdc754624f9f2cb5d130c8370ee0f8a2d8c2c99f9b373e7e731ce6c. 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/HKG732314332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905f5f746fa2239d8fddf0ed1a0930c30bb7a6f7695987915016008f354da81c. 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/HKG732128654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986b324bad007f4e58c8ed63395830ea956d5f5ee743fcc7a9daf5ed8d96c4b3. 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/CNC072100958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0dbe217289f8222624bf173d56170b203800093569348aae883ccfad3223ad. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/HKG731625236.
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 0xc4d1c26078775ff4ed3292894ddfd143a7944e0b014e40f91966c396c555bf74. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/HKG732127570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e41e5395d847b1862265816d59026c878c5420249e2631b6b0f2c9f94ca1424. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR2X42158539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb9bad3d0f58855b118857c1c1f2f86cc9e735ab66a5695262a35df6040ec50. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/HKG732283053.