Roosevelt most often refers to: Theodore Roosevelt (1858–1919, president 1901–1909), 26th president of the United States Franklin D. Roosevelt (1882–1945, president 1933–death), 32nd president of th
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 0xb54603a69cacd79bee9471dd32af6ab8794143f0d181acf35baab55b6c6a8cd6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28591f77-03a4-4264-9a89-4ec60477dec3.json and https://artists.proofprofile.net/proofs/artist/28591f77-03a4-4264-9a89-4ec60477dec3.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 0xfc404fd491c61c0b099efae7d6e1d9c9ffd9acbd7baf30d996d01646843d3215. 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/GBRTB2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044240e46fd333561589ac1464b99e2972820a074eed73f27924170f9945ccb0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEN962102500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15f122a34ad8a3b35d40e8f2c781cc0cb3dde409d47566815de318a0eeb9b8b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG12207571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa095279d76ce39402ffc44670f579678b7841a377d8683a78e73167b4c49585c. 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/AUFF02200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98acfb14e45484b58097021fdf3ff3b2215ce522b12b3bcc2afae5cd84c3fe06. 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/GBZN81800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737492378dac0fbccb1ea798f18b33cf81bcf7eeae2264389a6e17d7361f49ab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE22E1900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b8a0d08fbbe0467db2ee669abf7ef5a7dfc77efd5c83bfc1e8a437c7386784. 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/CAN112100373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf540c74e112ae8717df720e92bf680bc0399a2bc4841dfabba87c0464077d71e. 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/USD8D2086001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ae72c3a70005b3047134865b21d9ef97b8c1c328a386b3f398af640236c9f4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZZ4J2400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a40287070825186c43a01a8d6b3be872105fb0635236a9e3075d80cb1b430df. 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/GBENL2203240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63af54c7732dea4c3da87d46581bfd719fd931007663848031749cc856ed5078. 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/GBENL2203241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a786541395e70e44f8dd6f4ea7d0d91f178eb2e191121bc1507bcc41e9fb7f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB2DY1400075.
Higher Ground (feat. Roosevelt) - Extended - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8af22cd81f2010a8f67f691ffb7386757a135d81fcae713f7d4b16b577081f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEE862402191.
Higher Ground (feat. Roosevelt) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1df46bc296c9e684b051af15458db1139d260b56caf3ee040f4d884a62f9194. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEE862400327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa276f1c856704addb71197179327a5fcc72a4fee2060b8d88303c8760a45f0af. 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/DEUM71501686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f9a68d440936440fd713d26c20cc17a703d87dad43f43a317998a999af6a75. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU671300229.
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