Happy hour is a marketing term for a time of day when a venue such as a restaurant or bar offers reduced prices on alcoholic drinks. Menu items like appetizers are also often offered at a discounted
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 0x20f04ac19535e9b1ee363cd7dafd26bc0b6bdb80245422d89e9ba591aefbe7e8. 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/be0e4a87-f430-446f-804b-610a7719fc12.json and https://artists.proofprofile.net/proofs/artist/be0e4a87-f430-446f-804b-610a7719fc12.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 0xb589731faa79381fd320177a6c058939367f96077acc32412a18b11131518061. 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/QZK6P2452443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287e3c069eb390272d14f330fe8d76ac45bfd4cd039b35ab4291924b38b5be53. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHNB2492493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdfa9d4bc28b513bc62320fdfef48b0d011605fdccbbd0632ee7703e360a437. 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/QZHNB2496944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16ed020f255ac2c22835aec1982a294b13b70844bfa913867e579dc5d089517. 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/NOX8G2400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc4329276d014c7a80f394b04a31e0f1b7c404bef83a23ea509a25f5dd7e1b8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NOX8G2400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d309059c8350ba93a25d26bb11dac4b3dfdd5d034d03f486315b20463ede98. 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/NOX8G2400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7a8ad74e8d5294ac88144a612a322aac5b0c90ff5c0eba409c3574b6ab0f7f. 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/NOX8G2400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc46fb6fbea2f9a2db37153a34ce9308b612a8062b34efab5cbd6eeca8c39aa. 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/NOX8G2400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19fac2d6200d4ef7086043f3e51aecd9bace1f955864db1aa157e94f0c9eac7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZK6Q2400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba8b27659d7e17533924313940838a24dccf9c96ad052d6f4c1bf74d4b81ff5. 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/QZHN92465738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849ad4265650d459b1aa1b99b501f3c6f4f74536f486c03f58e37f8e1b2443a1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZTBE2363306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e09fcd7c5397ec8f6ae5946d306e9de17fd08e11b4e068ee8ac329cf6581bf. 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/QZHN42330537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f3287030a575f80e27883d708c0614dca930c19e83157d0e9e77e3552455f1. 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/QZHN72321730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026c38b24d75915f372598e121a679d0f6489cc9cddaaae3cc1490b84fa86712. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHN52303226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29614619693a9716fa4d95c9a7013f9feefc4c052e6cf85c5949c261e2b2f1a. 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/QZHN32370108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecddd3be74048c73aafe7899781ce716c7162d3c1f1199c3b5c2c8550ef6e214. 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/QZHN72323481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f2f3c498bbf2f87febed38dea44556f36d2905916c9aaaf5605dfc063665af. 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/QZHN92368548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4826ee23090d9224e21b1618e668e3c4f7224bf6e4588dd9fd0e80f4a90695c8. 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/QZHN92392483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dacff1978e256b44cae3058b832bbce51044047a8bba022e0afcc8e30017df. 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/QZHN42330592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db9ce5bd7674392f169b73c66fe714637405273d103cd2a8374b8b2c843421a. 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/NL4NL2216232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0917ade8f6376988281b27e2ac55aa0cae32c1cadb76fa7a966f7ad3a620f1f. 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/NL4NL2139922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45679e95493098594715de81685cfa8fc7b419453fa006304e267cf3b30d458. 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/QZK6F2563074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753daa9d892130a004d79e165afd11c08cdb24d1043297e6190f704625c7cdb0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZMEM2502231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5a9f5e2e56eda9edd715b844c5eb72737819f0a19cc0bdaa91325b8f1519e5. 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/NOX8G2500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a77867e0e4dcaa14ee1321f00a637e9435ae561a1263c1abbe29e03ece6f21. 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/QZES82552544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d79d436f74789998759edad948657cc31dd11108957acc56484cf5f07eb0496. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZDA42572520.