Papa Bear may refer to: Papa Bear (Sesame Street), a member of the Bear family on Sesame Street "Papa Bear" (song), a 1998 song by Keith Harling George Halas, American football coach Bill O'Reill
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 0xdf7c87389b6f077f27045c86686d2e1a3b3806cfa8549492fe48d47dc696adea. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0667b031-4dde-4c88-8a10-0686119a1830.json and https://artists.proofprofile.net/proofs/artist/0667b031-4dde-4c88-8a10-0686119a1830.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Drikke Til Vi Dør (Out Of Your League 2021)
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 0x95a883960c72f8c84563cf1e2bb1ac66646ecb93c72328a10b7a6e663915dcae. 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/GBSMU8967539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c76da1518526c6724d2c4fe8b0b5d45bf4bcb997b45db1461ff4ef2f97ca80. 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/QZFYZ2186622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb99b0052bdb87dc38a80a4f1eb1dfac0d8c1def3b0fecbf2659f0ed2ebce11f. 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/GBSMU7660826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8574d827edbb87f7a3e7327a0d13ac083701916a0e88a60e75b800ebb2016279. 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/QZES72127121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c389339dbc98cc86fd921ba0f479df226263011db6e5a63f2541b17e700c7a. 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/QZTB42232157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7d371c70bc1efa7a84f388a1a0abce888f21afabfc683b44653374c20b7947. 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/GX8LE2434852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335c7c09e32fb9539cc86efa20e355990202ed316da01d819459d691c73f575d. 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/GX8LE2463871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb5e474c4e1161e7e60fcd9a180f2d7fa68bc91a4d06d4c46e0e312cea183ed. 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/GX8LE2407072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92c0f384de96b2d435e122a0bacb671b8a619e32122c2cac79d3c7671227c43. 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/GX8LE2449713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5001cbb71cea61f0aba604008448dcab00686a290c1c0bb3b50b900c630868. 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/GX8LE2458267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27debca1885c7a44f5f262117c8a1490391e9ab5acc60977e22fed616aa68ab9. 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/QZK6P2448681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c899f930a288e3ad0a26f74cf60c9002178fac6d2551392c23c1a0d662c5296. 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/QZK6M2151165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7e68b4d631e360bce4b01d50f188691aeff95c30d325256d488f779b431d6a. 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/QZHN52186200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a15e13e9c2c31285c11602861d2bb179a95c972c5b6eef0c8352d152d2c3788. 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/QZNWS2021577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42895b85f2beb30fbfb4956af830fb737b9165eaad18c01915482d111e0505d0. 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/TCAEZ2094392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e08d6c749e8ae319652c87300c74dc18f03497fcd0d03a72a34a08825c32357. 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/QZK6P2450450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95421589e275597d754843f17505bb047c61212f262ee8eb3274eb30f90c7139. 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/TCAEA1975944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c73c77f149303623ad1bdebddb58f4754ac426575f1411a4c25d3a2956ec5a. 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/TCADU1800246.