The Day may refer to: Film and television The Day (1914 film), an Australian silent film The Day (1960 film), a short film The Day (2011 film), a Canadian film The Day (2022 film), a Bangladeshi–
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 0x2c421f0be88b96f6114b68cc4733a31c70327b2ca9a5a97a44281db60a5736e8. 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/0bdbb997-7fbf-450c-9262-81278c84dfd3.json and https://artists.proofprofile.net/proofs/artist/0bdbb997-7fbf-450c-9262-81278c84dfd3.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 0xf088ce2676cc09f04828548c6a03358b0f9d1608d674071a679e17c6f5bd6583. 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/DEAH12400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c863af44569ac722bd63c6c0fcec0a60532d405d80681e17fcefa3cb23b58fb. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEAH12400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad781e9f33e8a07c283cc5aa9ef492a48b9025a5c017e6d68ea1e05cb3212790. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/DEAH12400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69db84e93a83d38e36b8723c8789b80197ab786d7423931692f46ee39342b615. 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/DEAH12400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7be7de085d509ad939d1180aa1058b9d7e39297c7f04c770a7a0142b65becd. 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/DEAH12400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4f71ea0220f37f2c59f2d0c36a424ff0edb1b12aaa2107ba40e6ff5744d77d. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEAH12300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd16e8d924af94ab4cdc232a108d359d7dbe9884ec2b0a88e9daf324c690ab75. 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/DEAH12100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7319ea712f15e0f7e59aff78b0184f8244114716ca3ef18d28963d44cbfcc9e. 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/DEAH12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5775cef30314947e1e161e3c88189d00dc6d00090df063a4850b01e06849efad. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEAH12200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a0775fc71e8cea8647532d2980c9c04612be753cc7885ba5aa98ab0b00e239. 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/DEAH12400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81de84c9cb5c51808a51d1b8035eb47a84304c82cea2179514c7f30810045f02. 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/DEAH12400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbb795d9a9d18c00aa22ad2b93d61507bf93d0f1082e9e7a1924289faac12fd. 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/DEAH11800072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0189cd15877ca4ada307d4c335ccf0d58b2a7cb6fb90ac9fa9e3d11f764f6bd5. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DEAH11800073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f59c3b2d1e869b75e9819675befc3460e4d5887f5fbf81aba4df2a37a186b8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEAH11700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e365d879dad801c553cb998060e75a4f79f83fec280f78a293bdce0784679f. 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/DEAH11800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed66ad4786055677c347c853837f6d4b487847e51ebd621d854020c68112623. 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/DEAH11800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510ddf1df2be0a1d6cc086fd7a74f19e8e2992f3181244095049f618cf01bb4f. 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/DEAH11800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad781e9f33e8a07c283cc5aa9ef492a48b9025a5c017e6d68ea1e05cb3212790. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DEAH12400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4f71ea0220f37f2c59f2d0c36a424ff0edb1b12aaa2107ba40e6ff5744d77d. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEAH12300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd16e8d924af94ab4cdc232a108d359d7dbe9884ec2b0a88e9daf324c690ab75. 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/DEAH12100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd229f8116a11dff6ab171778936ff1e8325e48991e03b5333bb03394166c1f. 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/DEAH12000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7319ea712f15e0f7e59aff78b0184f8244114716ca3ef18d28963d44cbfcc9e. 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/DEAH12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f3c96d5e903e2ae7aeb6c152c3ec26d2b33e69019c5e2a09d3c0877dc291f0. 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/DEAH11900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16024e65645183f15255bfbcf407cb9bfc0606b483d30ada86938de984ca469. 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/DENA51400924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ddfb05ab7af0128df844250722ad85f47cd94695f88d40e7dfaa4c74a36b48. 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/DENA51400925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5109648253fbf3ea1b8ba44e91d8e8d959bd7292715e819144d43965329ad89. 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/DENA51400926.