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 0x78d7501be123c004100684238ef7ce4ea2c38f7642ae166a2c916d6e8a948252. 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/ca1c334f-c441-4ed2-a079-c16741f83270.json and https://artists.proofprofile.net/proofs/artist/ca1c334f-c441-4ed2-a079-c16741f83270.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 0x9d4f937ce08f9a9cc07511a5fe72721dc391f1436b91a9b5bd2f801cb7fb06e4. 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/TWCC32309408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b344e83e4cbb6ec03cf36c85f3f926ea45a0f102277a755e643ff35cfd37446. 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/TWCC32309518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa695b46a4e6ec45edcf96a8b2d12369a3f26d64b9204ff4bd00c11489521d2ab. 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/TWCC32309413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c43c71c2d192d55b2c34e6391f394dc322cce7a3f83e3ac1b9d0e3beb06339. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TWCC32309452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad698fc56510f5e3eecc5b790f8a7f39363c141c3968ad791cea0bb389e9811. 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/TWCC32309412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf71ef27ca333e69204013598e57d57424d412198fa1fbb2100476ca1500590. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TWCC32309407.
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 0x95db76f08d56d41b7d4b7b02f3c7fab0bf3d89740f9c98b2118f6c246a360dbb. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/TWCC32309409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65197b2605559d18657263f432ca7a38d95073b8f47775c7322b6faa4292a3d8. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/TWCC32309454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5622f79a78f78107ea14d75066df07071cd1bc89ed9257d15df5f697e2aac98a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TWCC32309414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef296d087e42f1238158af044e4431adfaa3cd1f46269268496b90c3e9ad27ab. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/TWCC32309415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0380ad99c186601bb2018db6e5cd42b087d965a35ed338688d99ee555109467. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TWCC32309416.
塞滿了我的口袋不是鈔票是暖暖包
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21676ff8c3c263a09a1726f879b55a650ec236462224f9e9270884aff7669154. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:07Z), 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/TWCC32322503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c587147101848c82d2b155b07d04b7f0bc261c191c0c2fe5dcce8b1fd72617. 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/TWCC32400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92030d901b5af4bcab3d24630d441ed98584c7f085fb8bfa5277d7a6e34f0e2f. 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/TWCC32400443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d8b3878c97cc6f8b79923ff64816fe5cb3e4359e30dabd99252f7ed9ca0a52. 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/TWCC32400445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6d1b6e28bd72581fefb4123957ab781040d30a3041bef2653bb825722d24a6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TWCC32400439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a7be9dca6dcc0d6053a0516b819749e21e674556ddfa68343ba7c807726681. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TWCC32400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0314a99b2b5c361d46d0804d1fb435c753fca1b4e746f92b82e7d2765cde1335. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TWCC32400442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e021c10e01e750c07caf46864a99ce63f2ac80943fa8f79303f701232e7ff2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWCC32400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc769eb0cd9546ef56ea28ec34332c7d7fcfc512e1a3afbb700dfdbaf5de25c95. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/TWCC32400444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9a1950b09b5d9f5665a7cd84b2da1f3770963ee12e09767b8f7aab0e72c406. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/TWCC32400446.
叫醒我的不是鬧鐘而是想見你的我
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3018c5f59affb59f25465518b97350121735f11352e243edcfe157dd5c153fb. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TWCC32510971.