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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 0x286adff336858423d6992e3cbe16c16ee575659adb0b8205e99a507c75ac579e. 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/2dc234ec-881f-4c3b-9986-43f41708f80f.json and https://artists.proofprofile.net/proofs/artist/2dc234ec-881f-4c3b-9986-43f41708f80f.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 0xa8075ee1db7d5100da1339e334ff50430e6b8574969bc5240a6e8b63da57a13f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:34:56Z), 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/QZHN91952605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3540b394781d865c451c1b2b8918b2a4eb9acb47be50ea8fd92bd52983807704. 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/QZFZ42041071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336f84953ac026e00ff76eba6ed6d46c001e2fd464bd2e14b32353f8b85d5a8d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:39Z), 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/UKR6V2111296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c096ed659892835fc3db4869b2c128259f0c3c0f3b18a3f8de80ec3cb17d91c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:02:44Z), 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/UKR6V2111297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad2720ba7e3591b99f108b3006d3bdc2f640ee96c10f74a93b7fd3fe919c744. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UKR6V2111298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc7084cb55f84b39162aab29c68c6800e20dcf6215dbd0a21e9cd355d9527a8. 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/UKR6V2111299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b41abfb79d9e1dc2ad51c717bc8d2d3febdafea71ef57c5a01c3afa3bd86206. 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/UKR6V2111300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673fba1792d573feabc984a35474e9e9fee2cef21a6d9fd055f459544242d75f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:56:56Z), 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/UKR6V2111301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6033bdd6bdda94faf34a66fa1e3d3aece3220a5809df4b981884187bf60f7c3. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:54:58Z), 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/UKR6V2116895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0798426c1663984931ea49b5d39b79a74a4dcd053e137e3b16e2be56086d608f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UKR6V2116896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac0b9eba01b78d15e075fc66c1fc437b57bc06ff0008427b13151870d643203. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/UKR6V2210294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b868f199beff988dce5aa5c6f9b9bb49fd1fc219ed277cbf0710711cf908db. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:18:19Z), 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/UKR6V2210204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc011f8c3868ef2587eb148827554de6a7d8a9c24bd20d23ca9c75b93a061b268. 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/UKR6V2212614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048fb5add7abdf4a0368402b62ec253371b00fae0a0d2986cd30899ffcbe1cd3. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/UKR6V2212615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd823127fec3bab0d69c442202d2d1e6d72126b3d5d47ab7426c5d308505951bc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UKR6V2310705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7001391eaf0a322a6236ef9a7e55a0eba7e9350f8ff3180da623eb1cfa9625c2. 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/UKR6V2310709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c922e8dddf6880c69b052c02208c259215ddec634ccf58d2a7e66aa8f04752. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/AUKDT2300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d65403fee47489f5e759316740af825fc363d9e55aa94279cb41ba4a33e07e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUKDT2300792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9900edc61e8aa6305f8f394f706bbcc7d193176103638e24dc9545b0573b25. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZNWU2438126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbb7a79e108e132a3ab23a7fdd129577b7c50565f013a931ed706fd0455df8d. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/AUKDT2400821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c25756739845176dae8921ed068ce137e2f80d6cf3c5522b24b3fbcafc11a2. 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/AUKDT2300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac859faa57c03116b50ed0d1e19a2d2a999844a511fd2c7c729b0d9f5b413b3. 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/AUKDT2300791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc7ced7e2f3d4476ed54676695c4e5a29a6e29fa1afcf580a94fbdb86090f98. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZWFW2456490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe875e19e785bcc667db23e299360299f3469c6cab03f3085c053945f5c8383d. 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/QZNWX2323669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b016b9800ba913ad8267ca5f99940da9158d0c5878c626368f8c0a9e7fb55c6. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:01:33Z), 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/QZDA72549134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e864b6483593eef9642d06b8ab01fa2c1481c30fd5d46c60af121a54e8129af. 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/QZNWS2553671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a77ec3fce55812fb4b41eb6ccf388e4e2f3d90e931ddcd87423a34f6719d680. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZTAX2525710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5f1b36db8107acf307e727f06a226986fb970ba69623dc56c431deff27450b. 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/UKR6V2212670.
Sunset from the Ethereal Shore - Lauge Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e0f663f93408624bd21c2a60b33e831ea1efc71c8d1ec01f18c7bb00d5dcf5. 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/UKR6V2012995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87f091939b49d22f9b8f54b2032c6e01515b1d012bc74e7315e2a79659d53aa. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/AUKDT2300124.
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
Brought to a Standstill - Spacecraft Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3c39c82dc9b23bb70831c0fe8f4ff1d4e46b7796bb38c8f00c35e3b06d7758. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/UKR6V2213132.