OverPower is a collectible card game originally produced by Fleer Corporation featuring characters from Marvel Comics and later from DC Comics and Image Comics. The rights to the game were acquired b
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 0xbbb2551f85b409d40bccc8a075b917a894a8569ee1147cdbb71b9dd888b8828c. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/056c69b0-6666-4ec8-b9c0-53b7a0812c8e.json and https://artists.proofprofile.net/proofs/artist/056c69b0-6666-4ec8-b9c0-53b7a0812c8e.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 0x3a460a34d89a77d28e01efd9089e4a277aa9b41e10a97cf594a330cc2634580a. 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/QZWFR2382010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650aa84835dd2631a1d8c1a89b0b7fb2bd8959ef5a921be290e81dbead8a0d71. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZWFR2382011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5bc7b6fad2c72ad5a495a9776d6a84b22e4fa34cdf3203a86a66a0012bef73. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QZWFR2381241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6357ad87a5084015f56bd6784983fdffc3fa094373aecb80f37dfed82c68737a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWX2239491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6423c13324b691497294fe57a34db35c47a2414545eabcdd4b6cf29c91235976. 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/QZTAS2253466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804ea513a43ad2dad3b051faa4332faa6e02bc735f59439c01d0ddcd8d39dcc5. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZK6F2259570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2150dcc60b3812137f842107b72d99b9d74e03e277ab2c8f26bd227e6f4a0a6. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZTAS2253465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e6f45182b1fd2ff3c539c591a4df9a5ba796a6c7d1519fed610fd009ff5dad. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZTAS2253467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6357ad87a5084015f56bd6784983fdffc3fa094373aecb80f37dfed82c68737a. 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/QZNWX2239491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ba689919f25027c1bb10cdfde587dccf7be93336508a26df7af7ca46ed50b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHN62408579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c478cdd1575aa4e114d1972ac2295f2e6ff7240975cd19e3ce7d49cfc6cf69d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN52488056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c11792afb03728300713ae52097f9e2e735b88741cb21cfa5173a008c21b438. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN62408580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe880386ae00d8c48b2fb4d8732e958b48258d97443241b0532bba9525c2f1723. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHN62408581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282291c540d6c059813104b89c6cd54111cabcaa7d40854b17ffa665fa81cb29. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN62408583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa499a1236af400f07e36fc7492a2051228907d03b9092fd025c394424065a75. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN62408584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73bb0bbe86fc8f51ead41b28b53ff2e35f31a3b4d93218ea76641c4e0d65803. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN52488060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71e9d2903c2276c5a8eb41f58a929b5e08873d8b6e9398d38265d5ee6dd77df. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN62408587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5378ac3f1a96ad6e694f1a77958a54dd140dbd9329ee3ad1672f66b7b027c4bd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHN52485227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecc8ed3e03c47f710de88c3af21dab6cac396bda13432fa7ad99eddee3b4cbc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN62408588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adc1b19559af5ad54320200ac0e24de9c9cdb56528d02605851302fac911831. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZWFJ2383209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44a4476150d405b0acf143c6aa5d447470c065694e647ed35fba06dec2ec55a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZTB42307270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da24e66c0da6f39868182ddc478a1509c074d832b2b75749add2c55dc1f39f4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZWFJ2383210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa7483e9d64611002f3aa8a9a8536ba3f36bfbb61b30cfffa13d8ea8b2c74af. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZWFJ2383211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f81d96cd254a7343fdc6d787b1a591646d8a7025eb550d68881421a9504194b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTB92433336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbfb381c2ab05f1df5ca4d663c21f9585026614f502a83f76b499e618d9e352. 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/QZTB92433337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda1784918bc34918deb2b77bb259c3c5aa1716409d4f9372aa9fd6703693046. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTB92433338.