Magpies are birds of various species of the family Corvidae. Like other members of their family, they are widely considered to be intelligent creatures. The Eurasian magpie, for instance, is thought t
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 0x044021f4dae24bca5d23e4e0a6569f854b4f896884fede69fa04d9e846f50221. 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/2fc53e55-d486-4aa5-b7f8-a72c9d598368.json and https://artists.proofprofile.net/proofs/artist/2fc53e55-d486-4aa5-b7f8-a72c9d598368.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 0x11e3adcf9378489750c0674ac59fcac938134ef3529077e6dc81ea93cc0aad67. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZWFX2401189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36f76f744801b20250e474a2cd3f8c8258a0756901277a54475b268a731ab9a. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZWFX2401190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae2788ea04a9a15ad3eca6fbabe5d61051a54e8ab1c4de42efe0cda006ac9fb. 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/QZWFX2401191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0df2d3e040dc6693e2ecf14f1e796ee9913393daeb00fbc1dd59e6b7e9e964e. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZWFX2401192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7184b24ca5d8f1601348df89ab8c77ee9ab276fe97e45e5e1f1b37c6124f65d. 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/QZWFX2401193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3cd50550064bd444620c55b432aa134ab1f45cf3e16bd58066b1b779715ecc. 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/QZWFX2401194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c2cf714f471b47c7d77a1be2de5a3efce939aa31a818b76b0082e5e013e46d. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZWFX2401195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ede6eee31ebecca2f8652dea24c94ed1674fe7268a8a8021a071fbb4b467ab7. 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/QZWFX2401196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7544c2d6c756ff3dd727208227e6cb65303a24da52adcd5e6a8870e9caca63c9. 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/QZWFX2401197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b783d432d370284f860e99d897be0e55b03690719148ae0c0f5bec9f0bbe1e. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZWFX2401198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b47acfd8357c33cd2b9a670dcc9c8985c44899476ddc439a3dc7d4998691d9. 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/QZWFX2401199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3245b9624d3e13799b0e48439e3152936376bc03c85da8248f98ad3249ef31. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZWFX2401200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce9028e37eb45788e1632199ddbcf5fab9322ecdf9a847ec13c86088df5d345. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZWFX2401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eff2e1f11c60bf27cd509f932be0d422af5b348d0abc2cb82b8487aa3e10b71. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QZWFX2401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d7016402918e221632801aaea72bed07b0d9c0766634577ca867ca7be9ac2f. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZWFX2401203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810292a7598eebb556abe4d78de3e073cb2015b8f82ef0148493e5f09707c4ee. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWFX2401204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27c92ed3e0303238d23a541cd6c5c484b99be3cbd95a25bc0abde54241f7977. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:01:47Z), 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/QZWFX2401205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35b3bb0b1c83bad5257106be7e11d13252c4529450052e3c88ae00334fce463. 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/QZWFX2401206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007a5854da3078bdf46f2ab062be248f96ab5750239018889517a6d34fe04df2. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZWFX2401207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956ee981c07bfed4b54640bdb56e973de9e9c090d9440e38fffb0ed0d9a22dd7. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZWFX2401208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89441adb15b256283b6227213031d4d2c9f9b814af2029efb37435ca1abffa65. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZZ762498493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2bae2cd9ced2b6720444075d07f50f3f596870d37852469d3f87359966099a. 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/QZZ762498494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca10dfee08f65bfc63cf0d0bf19599fff329eae0db7a4c5f63ffbfb928a27d90. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZZ762498495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a95eb448cb2250e3a5a4abad10afae80c22de7b1c54827333ee8eddd3809642. 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/QZZ762498496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fd08a7d3caab7e4009f207bc8194a65c0d90884e0250e2c1cf299d33ee6c56. 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/QZZ762498497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b996d9c4ea345cb9f3bedeb690538a9550b0fc1965d66a6e1f2ef2bc73f80ac. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZZ762498498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b53d0af67b457ef584644286be2ed0c394e2790c61518e6127d9a25be94bf9. 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/QZZ762498499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05945c3de753b0cfc8b38e05278e581553394c687cf069652df442512995c690. 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/QZZ762498500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8964605c0c4bb7f1bd996506e3b319ee9c42ed8d114ecfefc457906cb7b6604. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QZZ762498501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f636d7a56bb02ed084cf6487cf89dc60627c3b1bf8fb95550257a08440ad93. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZZ762498502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644f2be9f5722c36008d1057e7dec3c56cce814321546e20941b5086757d34c1. 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/QZZ762498503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fb904ea06b24d28c57cd1d634e1641968aa2adbdb64f96e5215ebfdd691b19. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZZ762498504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d9a527234174d1024536f78445ea1cfcc9861ccb608f44cbad4b44cc67d2cc. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZZ762498505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c303b12300cd7d5dde2299609a6b1a4cae1bf0867713dc675259dd2bcd30d18. 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/QZZ762498506.