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 0xb2dda4afc365e13e918e088d2a7caea0bf632f35c245ac6a1c3a5032da1410f7. 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/b192abd7-ba6d-40de-ab4f-4d344b4fdf22.json and https://artists.proofprofile.net/proofs/artist/b192abd7-ba6d-40de-ab4f-4d344b4fdf22.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 0x658e12b2c4a30b090174f2d1b986ead12f19f5b3cb93f85cd3b02c0335d44141. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QT3EX2419561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b7b4b6b94fb394ff402cc80b37c17f81ebfc47e5c761065f95d3b5e01f606b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QT3EX2419563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1243ec9919d5a7e3d3bde4bb37ed3b8d789d3e4287d23e00e2ab90434e8e93. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QT3EZ2456320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9dac947f7727e5f05cdb02bfea5d8645e72275107dfbf701dca7e72942548e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:40:53Z), 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/QT3F22470117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57f89118bbb6f456e7e2a212f8739da6b4c87633fb16c1a05f19f9caf4b8d2d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:49:18Z), 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/QT3F22470119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e23faeb90a2dda24414ec4817530163b1fe025709f7e5134adcd66d1984927a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:43:19Z), 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/QZFYY2543631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee998e120a943205b5db3b6a5a073fead5c825cbc06f3a15a5fe4c07e8e3552. 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/QZFZ32586173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa3b7e733e5f06d77ae9df44aba4d7a517d4bb2dd4dd7896054da07da65b6c2. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZFZ32586174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2c636bd5e7085cda958089e94c23ccdc9fa4893bdf4be721ce33fef54facd3. 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/QZFZ42563756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf186045ecf8bf1e167bdbefce5246fcabe78624b2498dbbbc304b4262a57a56a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZDA42547259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92438a8fbd5bc10b8aa5960512b4d48fc75042f098dc8e29f1fd8dadc60858fb. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA42547266.
Grävaren och några andra sanna berättelser
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3440ad90997ecae899181dec68dd85f417c8e472aaf02cfe6a2f52da850f36b. 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/QZDA72510118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93da69030c2a5db145fd17ec0bfca278dda9927ef5e00c043580d9a980396949. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZDA72510119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648371d8f933ecdc14b6c6fdd69b7e605811c11c437e69e0221219f1c85a665b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA82568900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e17cbfd31dc5be6d98754d3e7114adc10f83e0120bb7acee3c7b8cce1d7c98. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QZES72563372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a84c7e2623c4654c23239040c51a12917347390724250cab087d77c335d587. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZES72563374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7def91ba4f5a66d966d20614dbc2ae9afbe75215e5a10db6bd74c164ba5aaf05. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZHN32536431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8de463d61bbbdbc0509619327b42ad76664b1fb70c672abcf5b3ed9cfb5b82. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZHNA2536436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b307fc7c084a4967dab89c9ca7be233b1c01c98f2acdff608d2882819028832. 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/QZHNC2541160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3966c7f263bde7b16fe501fe0d0365a4f90108df793c96dbe4fab8e87b36a5. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZHNC2541161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bcb39f5cac353d0cd85d3b79239e79787882062dfe37d836f6ea8bc549a2fe. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZHNC2541162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b47e1b1db746a6dc6317a984e49a464cc10e2e9dbf12b43bace032fbd63f3de. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:58Z), 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/QZHNC2541163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fbc78ae807de5c7b88f594828a0a340a1598200eb2869a0550efba44c0023f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZK6N2579913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5505b1e2b6797a67102bb41121190342c44af89e9437c9080c930dc2080f42d4. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZK6N2579915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4540f0e0667d85286ff8ebbab60b1443bee854328403be1a5f79ea84b97e653c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:22Z), 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/QZK6K2520776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8324488b41735681cb970233f38703aa8ffd3e230b312a4012ca8c8f4c8d0f50. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6K2520777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e278f0ad25091a6c0a07f957aaf33e057862c3519848421cc73ecfa4f71a45. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZK6F2564951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d7b31b18f4c55290fd918d4526f9b803f6e8338fecc81ceee9079e76689bc4. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:06:22Z), 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/QZK6F2564952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb744856eab91b25683c1ccc1face55b0ae486dfbc73da26480a947bf7ed0af. 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/QZNWT2513837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa277559e8ab810e3d81f963b69171e79247031f3fb62a30d8f7292803e13f951. 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/QZNWZ2502195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2537b4abbaec079bd605781d412d01de5150c87de7ba285c26da4bcf23170f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWZ2502196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe26e2c95bfc0d9c20a8ac80e7d28dd583163a658d57d3b2318b160dde6528dd. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:38:02Z), 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/QZTAT2524295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ace8f6a347a758963f4a7bc63e64601b56f13694f9116dad79b6c643b54cc53. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTB52546087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05425a232d5f266c53626deeac3f8cb5f674a2d16b494382d0af044fc4ff1b4. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:43:49Z), 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/QZTB52546088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ed0545061c7b55b57725a2bca767c6397046ebc0153e720e33e61a078f8fbc. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZWFU2550025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454e4f2b5d35eceae2fef15eda716cea2221265a3cb6e98232a38648f9c0a76f. 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/QZZ7M2576593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7489e2a2d23193064c343af4fa9a0dc69f1e752edb12553892ae6400fbd7dfb9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:53:18Z), 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/QT3EX2575708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ec90ed4475566e0876996f54408ea14f00a0c57dffcdc0a4e712d3fa692e88. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QT3EX2575709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690895cc67cd1caf54503a4227501d1e9d1cde495c7df74c8e0e51c3e8e7d3cd. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QT3F32556731.