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 0x4b20842fff2590c829ad06af6e9cb20687415104d5e783674c0ea0c5e0b88174. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c08b7d93-e3cb-436c-8b27-048e303ff1ef.json and https://artists.proofprofile.net/proofs/artist/c08b7d93-e3cb-436c-8b27-048e303ff1ef.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 0x774bb398cadef161e10813a74a51b520939d06b5a0489ac7303ff8b2e92ddcef. 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/QZPLS2452383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f9428d41c5cd5f019b593374e9f554732102368876690e6f6a258da09c18a1. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZRP52434380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35192be322eb9e75b0e85bb4031a73c8c1e5d57904b945008c87ce90585d29bb. 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/QZTAT2451621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba9e4d19c26ec99d4e78261783156d244ae0e5be52c02452d457461a3323ac8. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZTAW2489450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbb69e618d26e18d8e9af3ccda45eb806b6ec36107322684c71fe6fc0ac55af. 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/QZTAZ2444687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b2a7696481e53c26bc8ae74022f1585fc41ae7cf7123145fc187a91bfb9bc2. 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/QZTB32454812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc010343a56dd300ec21f37f306bb61f919c5102d86099a1a5f7ef94631e1b0. 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/QZTBA2465763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe192f0e7f1b200558e757d2cea11042faa02d1eead9421b042323d2cd97d18b0. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZTBF2457795.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8cdd9b58787fc6e6f8032e2043861732a80a341b98c3881776d8296d7017e5. 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/QZTBF2457796.
Sliten cheva med turbodiesel vol.2 - Andra chanzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55f748d706002279e0b3f1e4491952912499d591cde9434aaa55c785d5193b5. 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/QZTBF2457803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ca81ae24d59e756a92c96d5e46f04b5945994771a5e2da3f12116798f02b79. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:53:44Z), 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/QZWFG2457210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40fa3ec16b3f3e8ac6a480689283e9bae01fadf987558d7741ff2a994acb98f. 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/QZWFH2490898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe314114e4c38e6b332bc4ec3935adaa4a316d11a988c7f07f87eb657e6bd64d1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:38:48Z), 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/QZWFL2439442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8d09f01000d8af6d7a3a49bf8df5c0c49513f4a92fd1c6a0b7918fe0da9717. 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/QZZ7M2449809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041ab2f6c5f54490c3a777033468d1511a6a2537a3c0589839ffed581c639779. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZZ7W2407613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920dedbb8d2c9da084ac26d1d5f8c9013f3f7450bb87e34bf517468d945a631e. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZFZ22561696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74e0e9a456f148c2eaf3824f45e282d6347b53d24fc457cd1931601947b8823. 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/QZFZ62573990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9a1f8bb238ee744a3ca5280155756d1a56dd0ae1df03aed4c36aff1a652fe9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZES82538559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7c7bc63fdb1d3f7fb2ffb5bd1d7f6e3f8ab71c1c0f4c4b3e3c49b8bc1243d3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:19:38Z), 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/QZHN42549988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866191618313fd59a7326896aa4d4d343912f2d38efffe0295432d4a4682a682. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZK6H2553423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab117edc310ebaa3a5c3c0f14de239b809a2026d2af0c972be863a6ec66b3e. 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/QZNWU2515354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1e6a389335b7c0ad49833af0e92c49598ce432516262bd7bf7225e199e8b1c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:45:37Z), 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/QZNWW2573635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fa8d89039fb77799fbd42764f59fe5f7f9cb5c67717e5fa1893c8cbf3ab75e. Chain 2 (Bitcoin): anchored in block 957791 (2026-07-13T02:46:19Z), 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/QZZ7R2518321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91075e37c2e166a612e55c983fc0ae0615988c7156c435c1763b40720bce6105. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ7U2581072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f8bac971c7643cac9d9a98419246de504657f21e307fbf596aa854502190f3. 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/QT3F22586785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e289cf0922010eb7e12f278fe6551dc0a90a22fa584e1d5cef235a71f76979. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:01:49Z), 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/QT3FA2589476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4964866be1704d19c0f69caff9e9666e99df8d3606e9edebdd06c0b43fa9a45. 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/QT6EA2548843.