Nick Jr. or Nick, Jr., sometimes disambiguated as Nick Jr. on Nickelodeon or Nick Jr. on Nick, is a morning preschool programming block that airs on Nickelodeon every weekday. Launched on January 4, 1
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c81667ba5fb0d59167546111ecd5e936c5a84d9dab35daa69a47bb2502f8c3e. 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/aee6eba4-195a-4d75-bf67-d7ab08dc2840.json and https://artists.proofprofile.net/proofs/artist/aee6eba4-195a-4d75-bf67-d7ab08dc2840.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d1ea1090e9fe709c7f78761da92d33ddaeab21195283cfc706d7bc78940af. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USN1R2417001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dde148447092b998c862d760abc8c00ce33292dbf7008dd95444e9300a7960d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USN1R2431001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d7314dc92028dc2fee9b7c5026b5ca3aba18f3adb7ea2934e4f8a8bd403a0b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe809dd6b1a6df9113e5439a04dec6a5f912417cc5b3b3b7ff311301aa79c12db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7d71cac177055b2627e0511d030e3cd5b1934b99f6a1484e6d9650127ed965. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe942cb7899bdb4443c478251d3687b0a60661af76bb4eeb55796cae059d4a0a0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad12e7dacb3e95ef50e5605e69fb7537dcc1f1f0d354bd234285c5391d277d63. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c51b3683bf7079d4708845b1b0770d55c23dc3b049c7b73085ef140c19ed2f. 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/USN1R2431007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf962dd5dd30931b3f0651f75cd2ebe6714b0a39c184e302ec48e935b1d8c2aaa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf2ad7680eaf011df74c994e0cead0be6b8fe3837e052eae811837d11a400e4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USN1R2431009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf362dd58b50394e43b2edd4f87c5ebc1e6e06ceffa36df08c7a67deb9855b34d. 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/USN1R2431010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda76373b340881455b926f47e2c59b02dee3fc8caa98dd9c8f7094e3f26ac431. 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/USN1R2431011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc735410ebd69341e10f020b3858bd41e9757849cb51acb037ce9208ec8e5546. 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/USN1R2431012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f2486838d1d373dc8a059d2f6840ff52bcd5fc746d72a6485d5c920565308. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a6b84c27bd4511f25c58684abd7e837e4722d2539b8cebd47a8b2f72959fe2. 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/USN1R2431014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea71a778869d62e6e9db31bf6bfd4b710286c03f58f50648146c704bfab65afd. 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/USN1R2431015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7591d7c81f6d0e38282c2c9ebb54ecd5bfe0577e602433a5d530dabcb79e0c1c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439ffd95a22343e479ce517981585afa95651a8705994a9a87b5fa5a1873129f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe909567bf51c6ccf8411902ac84502f52347a3d7db58b26e8d0e2edf93c66cda. 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/USN1R2431020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa155a1815e8d35d96fac5973f114fc5eb01c1b7e0635a4c99fe4a6502f35f3b8. 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/USN1R2431021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90b34ebcf2f309c1fae499aec37ac462465ea7dc7c83ff0b26e9445bdfdeeb6. 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/USN1R2431022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3fc5a3bff7998489c1938be820d315e6d204d03da2d4504bca2b5277f009a9. 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/USN1R2431023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb7a668d0a70a813988fb78173cae0f6cd8a02d64b63ccf1a94dc98dec2b91d. 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/USN1R2431024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89591bac53e2be0ac400e912165ffb7b9e2ee6bc8220d3659ac89e4f2a5c3106. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USN1R2431025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699d8e69fa936f5c9393c77e39a208d2d8650c57961dd0674aca13319ab8f181. 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/USN1R2431026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d79d2b7e1003faba25b210a363a233df20b751542e0f292d20550198b2e043. 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/USN1R2431027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170047594e10ed2f0146fbcd75ca575a1cd3b75982ecef1d1af205ebc20cef4d. 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/USN1R2431028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8049f751795bf678aa6ed275e6a0e57a290dcdb82deccf70999315070681e1. 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/USN1R2431029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5df6c821ca3c365f0c851daa83c4f81977a4002cd1af14bb1c0155f0f6d4282. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USN1R2431030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e618999e1891486ab96d23c70952d9e7ef9d87aedab43fd047a349c8f9260fd. 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/USN1R2430007.