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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 0x1b0fa4e1faed5c9e9f8ac96147e1916e7e754522dd6519b4e4d4457c1bac1d66. 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/b4471b3a-86eb-4e6b-86b6-1e82a4943ee2.json and https://artists.proofprofile.net/proofs/artist/b4471b3a-86eb-4e6b-86b6-1e82a4943ee2.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 0x2731625e429c731d2a13c2e7fbedb502f7ba5d87e2152d3ec4c7eb0737c93e54. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCADR1812900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b3385780a6dfdfecd34a26ef5c6127bc459b84bdc2dcd78a85efe0afde6177. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCADR1812901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1767a00cf537d9b50f99723955310218bf94e6af3ab79759325653993392fe3d. 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/TCADR1812915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc83f0135ec44f13e1b2b8e7d4d18f9b00aa549b74cbbf25dee225f6929a3763. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:36:54Z), 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/TCADR1812759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdd77049d07a2d4fcad0c00671e9e8289433fd37d5788326018545313713a54. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCADR1812764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb97a93440e353d4cfd0259b522649e17932b9710367413deec874d2987981f. 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/TCADR1812770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3543aecc5775df4e7ae2dc34d063a4d34b024717859e4e3bd344db96817f43f. 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/TCADR1812785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e73a2afab1c7f70f37aa8779fb0bb95e8980ada301407aafc5fdf0945e51bc. 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/TCADR1850239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50bea28cdbcf2b8b6966b8f80467e4af297bc3ff596228952772da7d32599bf. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCADR1850109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c1a70f73c934548d8ddc5fd3913bf13a8591d267a5d03c3d52d4f5c2f28384. 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/TCADR1850113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fe7561eb60e9d77d1de143b13839f983762908b4be6bf83236942389599494. 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/TCADR1850114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4744ee1bf4ded0eab7e8ad8235a6eb9ab52ccf17bae38ce8bd21a2dd26a9300c. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:47:05Z), 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/TCADR1850122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7166f938614e5b63a93602aa00a5b4354d75419f47026bad4c8b640bec8e66e3. 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/TCAEL1940398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca261710e8207651d57c680cd97b51dac4a4ac40cb85d87bbdade7a6d0208c24. 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/TCAEL1939860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77494a80d84a5b3977885ce9675566cc5ddf1c8d911e436084309e872cbc1f1. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:51:01Z), 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/TCAEL1939864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7f5cd18f577a31a255b6f081e86e3ecae95ca50ab28af64423ed8c3c07e475. 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/TCAEL1939883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8578510d86f4c9767b9f484628da938d328653dff77fa7009c3ab9b5f64a437f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:46:00Z), 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/TCAEW2017555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eb743a7bc65fc1e4637e2b4ce0d8f3d27b361d585d5b2d1038547390803d5b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAFD2069765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41157bfb3726d2cbda3f9da3e88497cd4d20f75c7ddc4d978bc21d6f72f4abf7. 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/TCAFD2047387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7264f89d5208cc39279a3fad816057c9c3760e05a71c7176e400fb900171c8e0. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/TCAFD2069785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82d9121c870edb0a6bd3c19f61508fdc93a93ef5d229424081f1af09ff86ab5. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCAFD2069876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0a54a69c1fd0cb234e08a15ff7807c1d59432ab233c7af96031d67604e73a3. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TCAFL2119848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670ac21e79f45acb5daea84c3058cbbea7ddc87058ecf93a6dad450a604e9487. 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/TCAFY2173610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814aafb020e6975af87338a26704bb48320108605c1c88b2a8a9342d45de29d0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAFY2173739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bfb0644db70a8c635f317e038785323637688840bcd7594da0723f00d2f586. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAFI2159187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bb4e404b1c6a9ca9ce6f59394508f4cef5b5e789d3cc1de9e20d581faff755. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:18:57Z), 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/TCAGO2203492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bb0e9c8b53ad944d2e2a5c2051b6abff81cca4ba18e3b9b8361e6a6992f3ef. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCAGO2203571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c45e53a7d0b54580ad948572301d9e051994df7ebbe7f1236d798b506901c41. 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/TCAGO2203594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde593aa0d209993307c174a51bd1d4544cfeefd8bcc6ea4622cd791117e0962a. 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/TCAGO2203612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2fe1b248829b2a4fae36a01ec350e1969863913c3f4a931ba27cf6f7cb1c6f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJN2590293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fe23728ca6dde9c02e3b982a7f8ed99a8f0b00688ff1901ac6e9eb0b92643d. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/TCAJM2590315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a5da7b54ecc89ff62d1e0dddcc90adb45163f28b6134efdf089f295792c211. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/TCAJM2590330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f03a38a035025600970f4917606cb6bcf11a2875d0f7f7cb0ca71b986515c6. 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/TCAJN2590336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bfb05a4eda19aded60e8f452d50d03e6dbf06d93c1de2f46bd3866f7471b8a. 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/TCAJN2590370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2525832982529cbe12884499c79e7ce7f3f51c5cb1154a76fef050679e4bff37. 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/TCAJM2590378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4f505199e062fec05aa2b8017709a3b4a078003640fe6e47ccbef74a74bff9. 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/TCAJN2590386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf3ff5a6817e41d74b60c3094b02faac62378f390f40669ed78065f7dcac358. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAJM2590393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc3cab6cfbfc5aae418bab70b57eac19fd31f60527b8fda481cd789f119484e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAJO2539897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5706f03a50d487f7d285f28e3c7c4abca7ced7da961a5166952d8e5285199af4. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAJN2558160.
Der Einzige Weg Nach Oben Führt Nach Unten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6119bfb3d72302afb3e29f59f5f854998e1cf8122d668b3dc0ab4ea364e8223. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAJN2558233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67d5939593c0efe427c30e1fce6690d746b3babe2bbd57a40ea839f4ba3737b. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/TCAJN2591190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76eed7b63ded814bfdbe04851e6fbc73001b20ebb4f2e5472e6a091044eac8c3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJN2591194.