Downward is an English surname. Notable people with the surname include: Alfred Downward (1847–1930), Australian politician Herbert Downward (1880–1973), Australian politician Julian Downward (born 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 0xffe6fa2f7de297928509274aac87976717de5ad4b703cbdd43f2e926ffa21c90. 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/0562f01d-4dc9-4014-893f-ff5f24b615b7.json and https://artists.proofprofile.net/proofs/artist/0562f01d-4dc9-4014-893f-ff5f24b615b7.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 0xf1d4333676c12e8749699f1d17018642f1ce7d1172f2b7a9433f257f7b33507d. 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/QZ4JJ1814646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb194dbe15377ee70643ac579606c2cd1e9a4796d712d1166dc8ecedfdce08e5a. 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/QZ4JJ1814647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7b4e214bd3bd3cff7c89ccf222bbaca01e6c19aed754477b7bd6fa7b77747f. 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/QZ4JJ1814648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d6a6a14b7b46a862ec3a3fdde361d9993489cfb5791625ff23d481115ba677. 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/QZ4JJ1814649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5ac88dfeb5aedc24df461c45b5322c5199234e179e67f9c944458ea5b16967. 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/QZ4JJ1814650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbca3db38366e0d16bb02fe1fedf75443f93047a5814d4c0ac12d9743b33f0ae. 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/QZ4JJ1814651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbc35c8878b5460781fb8bcbac57acf841f57c46464db187135b2144245b1c5. 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/QZ4JJ1814652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4981388abe64349fd8f83f57e31cc38f7ef59cfce5a4e98d80718a5400a6b961. 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/QZ4JJ1814653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b80bec13e9d1e6cc59c91a545b221368399dce23446d7679a1ae46524683a5c. 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/QZ4JJ1814654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cfc6ec24faabd3da5224697dd3abe2ca233a9e8e3bcba1cb763499be388eba. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM99V2314201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a66bc8cf233e9ef9097dbeccc43dc5ae25a05d2ac3bd0277d640d7ba692f54. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QM99V2314202.
Real Green Dollars - Audiotree Live version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f65196b8f0c448e031f3d681e72c37f5bfbfb7880a58bab3db37045ce5a0c78. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/QM99V2314203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dee51d5ce729f34ac9c17d378bef87a3dda2d42b5cc39102620775340faf86. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QM99V2314204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd7142d5e2c2d22c432e13cf274c6c1e1d701a569301d7f0b078d1a0cc29ccc. 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/QM99V2314205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63f60148f74beb4103628f604b59de06ce89ec0d3f970e59e37325a21ce4835. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QM99V2314206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f67e0ffbd8c535f1a0b2bcf4d1ddbb5fa480dd4584cbce9eee2093eb7004177. 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/TCAHL2396776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ea94b98290d2a271e1bd2dcb51483628a1c807504e396aabe62e22d9ea0be6. 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/TCAHL2396778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5026c0ec7b8e1fb6402d3041679ed26e39b6bdf5c627ff956575cc95e274be89. 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/TCAHL2396794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbfdb9400618598272306f0028649e508f6da013a5f74bbf7bf5e4bbefa534a. 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/TCAHL2396799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6482259e0a3c8db4101fb6c179dded7a9142141f547fca5e8713f374829987b9. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZDA82243716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb206993a37be434801383148077149ee0d8ec0b75523632ab3df27f6e7314340. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCAGA2261072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6464302e4e03de5f76eb0fe01a89042ad1d04de43d6a7e23d81c03eb6a251f. 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/TCAGA2258488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d2f57128dadb561d437bc2f97606d37825fa87534ace7d4a399b18cca4a43d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZES81884512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf0c399b76a6be789024bfd40e89637a6c02c00d94396706cebfac1fe550741. 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/TCAHI2357764.