thumb|Trinitrotoluene spin view Trinitrotoluene ( ), more commonly known as TNT (and more specifically 2,4,6-trinitrotoluene, and by its preferred IUPAC name 2-methyl-1,3,5-trinitrobenzene), is a che
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 0xfcfd915c33c33aaea4728a274e1c34171edb868d77efd00d9b8e39d5936456f3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9c0e098-4ef9-4472-9d15-4b73803a4eb6.json and https://artists.proofprofile.net/proofs/artist/e9c0e098-4ef9-4472-9d15-4b73803a4eb6.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 0x49bb4c70c8bf244fb12b34499b09e74706788aa84228c54dccbda08f51469446. 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/NLE801600339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96081e0ca39aeaaa80b003e9efff215761b534ba57cf4cb5f67908d3653cd658. 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/ITC941702226.
Hardstyle The Ultimate Collection 2016 Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d609524c4e2ea691cf9c9052d72e502c2dff62f10fe694c4a8a1f11b99c912d. 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/ITC941503004.
10 Years Da Tweekaz - The Definitive Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0528ca917e059368aaac2749689b16462ca1df448816c4ce2545a6b5941324ca. 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/BEB681800360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd6dd98d5ce7e678da31d44d61f92f5332c3f3e1fa7e1853582c5ac9c78ed05. 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/NLH2L2100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bca14b659de4927e4a13c856e28d55e53b2cdb05a3dc868eb15f6df50b492e6. 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/ITC942204355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91a91a977b658c65109100dc6815e6d3e9784e7fb1ee9bf008fdd6218591dd4. 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/NLE801800224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e015e09f8dd856410bd13c90529e8804cec6dfbd17e4ae39497ede7f9ffcb07. 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/ITC942300782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0bcd20d6a37dfad315295fc6fa67c4f9c370056b3ad220e60db130eb67fb7a. 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/ITC941403143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a30a5618817813a169c906018ac2c3396c968082b81192050d9bd3764562243. 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/BEB682300717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52f37965ed3c73a8a3b60443c63fb7682056c7b65a204b7325344322b6c1e6d. 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/BEK011800207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb8d0b9c2e9e3a78637673aa013cdf493f8a544d06ee453dd4c3cac10c13851. 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/NLE801900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe335e806e082a3ec173c9d8eea442a52d26c028e17322009b4c97b7ff33c855b. 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/ITC941100443.