Numidia () was the ancient kingdom of the Numidians in northwest Africa, initially comprising the northern part of what is now Algeria,Tunisia and Libya. The polity was originally divided between the
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 0xdbb0703132956701d2d77467bdb0260aac59abe78d64a8f4bda2ba546aa273ec. 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/bda42aed-4b9c-401f-8150-9371635447cd.json and https://artists.proofprofile.net/proofs/artist/bda42aed-4b9c-401f-8150-9371635447cd.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 0x69ebcd305f0c3b1497b98634a394b58a27f708fd582329e1ea5d2c8dea390fe2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLV6L1900070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac851483434031c886a5243d2d881fa89cddbec4d3975a9d28a7360a3f49b7a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/NLV6L2000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e82cc94a196be22691b683ebcdb55fb876e5a8bb0966cd2dd8064b5adc17f. 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/NLSU32300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e44bf37408e543e8836df2de9ca7f90c9d7b4dc48c62c5453b0cdf606988bf2. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/NLSU32300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e82cc94a196be22691b683ebcdb55fb876e5a8bb0966cd2dd8064b5adc17f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLSU32300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea31b5bcd3189ca54b7e0e146ca028738f8c728f08d7b44cc0baeb322294d50. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLSU32300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ac8b8846c16c2dbc53771d6456fdd9841cb2760087897eaf8d7dbb96fbcdfd. 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/NLSU32300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e44bf37408e543e8836df2de9ca7f90c9d7b4dc48c62c5453b0cdf606988bf2. 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/NLSU32300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e82cc94a196be22691b683ebcdb55fb876e5a8bb0966cd2dd8064b5adc17f. 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/NLSU32300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0277aef8f460d8486f9f78f07e0827ae2afedb017b9ddfe7ebbb22ae233c923c. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLSU32300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3744f3169b84088ec22034b018f1e29dd83796b00ae4e0d56af697426afd88a2. 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/NLSU32300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec6c8fa048d6a3c55801166fada40e3f52c51ee567f97d1af6fbf115d9c5e16. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/NLSU32300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee822cc6982401a735df98d58821788d391da62a45332eafa0907c2c8a2a7193. 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/NLSU32300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c298d19e056796c8ccf4f7666e73738067d5302b33d322829eea82a764ab45a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/NL5HJ2400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c7f2210cd1f146e3bd88f39d51d4100f56756617d36e68cc2732dd51be0c83. 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/NLV6L1800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb590b5fb39402e14dfdb7bed64c4e44f83a73c9abd2c36bac08b448336209216. 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/NLG662200099.
Beste Zangers 2023 (Aflevering 8- Duetten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec6c8fa048d6a3c55801166fada40e3f52c51ee567f97d1af6fbf115d9c5e16. 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/NLSU32300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee822cc6982401a735df98d58821788d391da62a45332eafa0907c2c8a2a7193. 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/NLSU32300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7124ecc43baa110607a62aa1ad36e52c44ae83dfb10da064496fa4aa69ec4c. 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/NLX1N2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18467f0ead39db9593a4e9a77979a05b86cf10053aec76a4ad2e85b17f0fb6fb. 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/NLX1N2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e82cc94a196be22691b683ebcdb55fb876e5a8bb0966cd2dd8064b5adc17f. 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/NLSU32300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0277aef8f460d8486f9f78f07e0827ae2afedb017b9ddfe7ebbb22ae233c923c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLSU32300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec6c8fa048d6a3c55801166fada40e3f52c51ee567f97d1af6fbf115d9c5e16. 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/NLSU32300040.
Beste Zangers 2023 (Aflevering 3 - Marco Bakker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e44bf37408e543e8836df2de9ca7f90c9d7b4dc48c62c5453b0cdf606988bf2. 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/NLSU32300017.
Beste Zangers 2023 (Aflevering 2 - Mell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ac8b8846c16c2dbc53771d6456fdd9841cb2760087897eaf8d7dbb96fbcdfd. 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/NLSU32300007.
Beste Zangers 2023 (Aflevering 1 - Douwe Bob)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea31b5bcd3189ca54b7e0e146ca028738f8c728f08d7b44cc0baeb322294d50. 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/NLSU32300003.
Beste Zangers 2023 (Aflevering 4 - Duncan Laurence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e82cc94a196be22691b683ebcdb55fb876e5a8bb0966cd2dd8064b5adc17f. 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/NLSU32300023.
Beste Zangers 2023 (Aflevering 7 - The Power Of Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3744f3169b84088ec22034b018f1e29dd83796b00ae4e0d56af697426afd88a2. 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/NLSU32300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcddfe94ac1fe34d5ad706dd9cc3160a146e64d05cefb3432faa8cfcc8be772e. 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/NLV6L1800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eafde6416bd78b96f5ac72a6dfac6ff9e545145dbdb5bd97d1a0c131ace2392. 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/NLV6L1900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eafde6416bd78b96f5ac72a6dfac6ff9e545145dbdb5bd97d1a0c131ace2392. 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/NLV6L1900060.