Michael Macdonald (born June 26, 1987) is an American professional football coach who is the head coach for the Seattle Seahawks of the National Football League (NFL). He began his career with the Bal
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 0x0212b1ad37e313280a78e015f6c018530ceaa1f9714fb10f547f8e4add665818. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1372277e-4a80-4e2f-b14e-00434b7a4dcc.json and https://artists.proofprofile.net/proofs/artist/1372277e-4a80-4e2f-b14e-00434b7a4dcc.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 0x7854d2120bb127f0997a7a5fb9d011dd3fc4dce17f3a80b9186f33695d81948a. 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/QZ5HC1775113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c0c277161a81d1874fb2f67d77e85b3b679ae92e14f1831cc2cda224e8a8bc. 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/QZ5HC1775201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b285d7b0628cdaaef01483d7c9b6c2390096f95e1f1b747a205bf9230f11aa. 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/QZ5HC1775203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f0b63c738414adfb8150a199d6ed4321934165b60887db71f70dcc8ed72ced. 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/QZ5HC1775216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acbc6d895d54d0b57a247ead01bedda972bc4d27f69563cc914a132da657f65. 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/CABXX1801586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2870be34af1e0b99f90476b39432bf2192095218019bd290129449929ca2f292. 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/CABXX1801587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69a71e9488c39e373c926921be26913acad405cc30c8015f00ca34124a5715e. 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/CABXX1801594.
Just for Laughs - Canadian Classics, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5af911b39a338c6a136bb8955f3b48b0bcdc3e2fd138e1b268e85215c44663a. 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/CABXX1800541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa6835c39b9214442884637be13f699f4d4e15e98ca457b77ab70dc6e8905c9. 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/CABXX1800549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c76beafdf3e5a6087488a2d07f48f447e556215d0379f9ab06639c51056b6c. 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/CABXX1800550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e35187583863a603ef8e1ee6a3b7df6e185b9fd9611680bf2391d3984f8fe20. 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/CABXX1800552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6667312dfee9bad9ace0e85747f83bef56ea5044b885d61251fc97d5d7196017. 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/CABXX1800555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfb32aa55ccb5fe3edd2f4bf40162afaae1862fb3d70a664c5beec5807ba8bf. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CABXX1800546.
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 0x2bfb892720fd5f27cc6941f92d71bd4ac99ee449f59c1d19e42842be7ea450c9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CABXX1800547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f891e54da569cc60e0a87dd97ba88f4e8e48e0f42b08cfe6f57f903896e4e35. Chain 2 (Bitcoin): anchored in block 957242 (2026-07-09T01:00:33Z), 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/CABXX1800899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10d6c95abe1229f222e72a3b097e0a0db762fba1f52b0cd0dd22858e887852f. 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/CABXX1801754.
Just for Laughs: Canadian Classics, Vol. 7
Just for Laughs: Canadian Classics, Vol. 4
Just for Laughs: Canadian Classics, Vol. 8